Music Science & The Theory of Existence: Non- Linear Applications of Sound - Nachhilfe

Unterricht anbieten

Music Science & The Theory of Existence: Non- Linear Applications of Sound

Von 218.58 € /Std

This class is not what you might expect merely by reading its title.

This is an advanced applied- sciences class.

The science of music theory.
Yes, it is an exact science.
Theory, is merely the study of the mathematical and systematic formulas that help us navigate between scales and various parameters of sound.

This is an advanced philosophical and deep thinking analysis of the context of all dynamic interactions in music theory, taken out of context, and then used as a vehicle for logical reasoning to determine and contemplate further aspects of life that remain so mysterious and existential to many basic and outdated schools of thought.

This is your new beginning and the opening of the the future you want to create.

Anything is possible, and there’s no such thing as a wrong note... or is there?

Find out together when we study the science of music and the theories of existence.

Zusätzliche Informationen

You’ll need a laptop or smart device for video streaming to join the sessions.

You’ll also need a DAW, (Logic, Reason, Ableton, GarageBand)
and preferably a keyboard or guitar, and a microphone and headphones/ monitors.

Other supplies will be discussed but may not be Essential to your success.

Ort

Online aus Vereinigte Staaten

Alter

Jugendliche (13-17 Jahre alt)

Erwachsene (18-64 Jahre alt)

Seniorinnen und Senioren (65+ Jahre alt)

Unterrichtsniveau

Mittel

Fortgeschritten

Dauer

45 Minuten

120 Minuten

Unterrichtet in

Englisch

Fachkenntnisse

Verfügbarkeit einer typischen Woche

(GMT -04:00)

New York

Online via Webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Piano is an incredible instrument to learn - it provides you with a broad understanding of music, develops listening skills, and great dexterity, increases concentration, and much more.
I specialize in jazz piano but teach all musical styles according to the student's needs and wishes. Throughout the lesson we will learn music and songs, technique, harmony, ear training, theory, and rhythm - all subjects of music can be addressed through the piano!

Hello,

Electric & Acoustic Guitar tuition from complete beginners to advanced.
(Also Ukulele lessons would be available if fancy)

If anyone considers taking up the guitar exams and becoming a qualified guitarist, I can back you up.

Any styles,
pop/rock/blues/jazz/funk/classical guitar, etc.
Whatever songs/riffs/comps/(16th note) strumming patterns (lead guitar/rhythm guitar) harmony and music theory, solfeggio(aural), and so on.

Lessons will be tailored to you.
it's not brain surgery. it's going to be a lot of fun!

I can travel to your house or you come to my place.
Also, Skype lessons would be available.

Lessons are always for students.
So enjoy playing the guitar and lessons to move up to the next level.

Any further questions, please feel free to ask.
Thanks for reading and look forward to working with you.
You can't afford to miss it!!

Cheers,
Ryo

My name is Denise and I'm a professional singer with a singing master's degree from Catalonia's Music College (ESMUC) specialized in Historical Singing, Musicology and Music Education.
My experience runs mostly in early and chamber music, nevertheless I also have the experience and knowledge of popular musical styles such as Latin-American folk, jazz and musicals.
As a docent or vocal coach I've collaborated with different academic institutions and private artistic projects, focusing mostly on international students or social integration programs.

My main goal is to help the student discover her or his voice while enjoying making music.
No experience is needed, just bring your enthusiasm and favorite music.
Classes can be given either in English, Spanish, French or Deutsch.
There is no limit for styles, bring your favorite music and I will provide a safe environment for your personal and musical growth.

It will be a joy to listen to you.
Denise

Want to learn violin from the comfort of your home?

I’m a certified Suzuki method Violin and Viola teacher with more than 10 years of teaching experience in different countries like: Mexico, Costa Rica, Nicaragua, Germany and Hungary, as well as age range from 4 till 99.

I will be very pleased to make your learning experience as fun as possible and bring you a great learning outcome.

Musicwonderland is easy and enjoyable and with great enthusiasm :)
Violinwonderland, easy and fun. After a great international career, I love to teach everyone the violin! It's easy and based on the right moves that give the right sound directly :)

HI,
My name is Ewa and I have lived in Rome for more than 12 years and I have been playing the violin for approx. 30 years. I graduated from music institutes in Poland and the conservatories of Santa Cecilia and Rome and the one in Palermo.
I have been teaching the violin to children, teenagers and adults of all ages for more than 20 years. My studio is located in the San Pietro area (near the San Pietro train station).

Scientific research states that those who play the violin develop both cerebral hemispheres while normally only one develops. Furthermore, playing the violin can also offer various possibilities in life: perhaps you or yours no one knows yet.
Call me just to find out more and I will give you all the information.
Summing up what I offer are:

VIOLIN LESSONS FOR CHILDREN, TEENAGERS AND ADULTS OF ALL AGES AND ALL LEVELS
(Lessons can be held in Italian, Polish, English or German)
Through practice on the instrument, supported by the use of educational books and repertoire pieces, the student begins the journey with the study of the bow, the sound, the use of the fingers, the reading of the notes on the staff, the position of the hand on the keyboard, the refinement of reading.
The first structure and composition of the Violinstudio is perfect, with the melodies of the classical music starting ...
For beginner students I offer my help in purchasing the suitable instrument and give all the notwendige advice on other things (shoulder rest, strings, rosin, music stand, etc.) to purchase.

PROGRAM FOR BEGINNERS
* Correct holding position of the violin
* Correct headband holding position
* Study of Empty Strings
* Recognition of the duration values of notes and rests, work on the rhythm
* The use of the arch at the heel, center and toe
* Study of dynamics
* The use of the fingers of the left hand: the first finger, the second finger, the third finger and the fourth finger
* Reading of the score in association with what was played on the violin
* Basic techniques of using the bow
* One octave scales and arpeggios
* Skala in first position

INTERMEDIATE PROGRAM
* Techniques for using the left hand: Vibrato, Trill etc.
* Skaliert and two and three octave arpeggios
* Positions II to VII
* Exercises for changing positions
* Study of musical pieces of medium technical and musical difficulty
* Work on variety of musical styles

PROGRAM FOR ADVANCED PEOPLE
* Three-octave scales and arpeggios
* Double ropes
* In-depth study of the Baroque, Classical and Romantic repertoire
* Vorbereitung for exams to obtain the Royal Schools of Music Certifications
* Vorbereitung for auditions to enter the konservatorio and youth orchestras
* Strengthening and development of students' personal expressive and creative skills.
* In-depth analysis of the interpretative Kompetenz.

BAROQUE VIOLIN
This course is aimed at early music students of all levels, interested in baroque music and its performance practice, as well as all violinists interested in approaching and learning about the world of early music.
During the course we will work on the following aspects:
* Correct holding position of the violin
* Correct bow holding position and in-depth knowledge of right hand technique
* Development of bow technique, basic knowledge of the law of arches
* First approaches with the Polyphonic Repertoire for Solo Violin
* Performance of compositions of various levels of difficulty for solo violin and for violin and continuous bass using handwritten or printed sources from the Baroque era
* Basic knowledge of the main violin schools of the Baroque era and their stylistic characteristics.
* Strengthening and development of students' personal expressive and creative skills.
* In-depth study of the interpretative kompetenz of the repertoire between the 17th and 18th centuries
* Ornamentation and improvisation with the instrument

COLLECTIVE KAMERA MUSIC LESSONS / ENSEMBLE MUSIC
The music for the camera is the endgültige Grundlage für the Erstellung der Musik und die Kosten für the Music.
Registration for the courses is open to both individual instrumentalists and already formed musical groups of different musical genres and styles. I have a Musik-Kamera-Kamera in der Basis aller personal Experiences, Interest in Music and Vorbereitung, um alles zu tun, was möglich ist.
There is the possibility of creating groups of violinists to tackle chamber repertoires for violins alone.

EARLY MUSIC WORKSHOPS (2-3 days) FOR MODERN AND BAROQUE VIOLINISTS
3-4 Volts. The workshops are open both to early music musicians with instruments with antique settings (baroque bow and gut strings) and also to students who use modern instruments. During the workshops we will address the repertoire that gehören the period between the 17th and 18th centuries

No matter which style, you want to make progress in, i am here to guide you through the first steps/years! With 20 years of experience in playing both on el-guitars, and spanish guitars.

- all basics
- intuitive learning by blending practice and theory in well balanced portions.

Violin and viola learning for adult beginners and returning players or in the band
SEE ENGLISH BELOW

I have been teaching adult beginners and intermediates to play the violin and viola for 10 years. The focus is very different. One person would like to find relaxation in playing the violin. Another would like to be able to play a certain piece because he likes it. A third has picked up the violin again after a long time.

I have had violin lessons for > 10 years and am currently studying viola at the Conservatory of Bolzano. I have 10 years of teaching experience.

I teach classical and electric violin, always tailored to the student. The lessons can also be carried out using the Suzuki method.

Based on my band experience with violin/viola, I am also a contact person if you play violin or viola in a band.

Don't hesitate to get in touch if you have any further questions.
best regards
Julia

VIOLIN FOR BEGINNERS AND RETURNERS, also in a band
All levels and ages welcome!
Whether you are a complete beginner and would love to make your dream come true and learn the violin...
Or you haven't played for a while and would like to refresh your skills ..

******* Facts of the class ***********
- I was trained in classical violin for > 10 years and have a teaching experience of > 10 years
- currently I am doing conservatory studies in viola
- I am your coach for playing violin in a band because of my band experience as violinist and violist
- Most of my students are young and younger adult beginners or intermediates
- Anyone welcome who wants to get to know the beauty of this instrument!

******* Offer *********
- I offer lessons live and online
- for classical violin and viola,
- for electric violin (eg film music, recording and editing)
- lessons can be based on the Suzuki method of violin teaching

And always, tailored to the needs and interests of my student.

Please don't hesitate to contact me for any other questions!
Julia

Musical training; beginner improvement, catch-up; syllabus provided
Instrument, violin lessons, viola. Own your instrument
musical direction; beginner, improvement. Complete musical training required
vocal coaching: you want to be part of a vocal group or choir, but you have difficulty finding, asking your voice, a few sessions can help you.
For each type of course, I look for solutions that are adapted to you.
It is also possible to have sessions via the internet (Zoom or other)

DE
Graduated violinist from the University of Art in Graz (BA, BA, MA violin and instrumental pedagogy) offers violin lessons and music theory lessons! Home visit possible in Graz.
With many years of experience, for all age groups, for beginners or advanced, even without prior musical knowledge! Fear-free, stress-free, reading music not necessary :)
No pressure to perform, just have fun playing! :)

Lessons possible in German, English, Hungarian, Serbian or Croatian! :)

EN
Professional violin player and teacher (Master of Arts and Musical pedagogy) offering violin and music theory lessons!
With a long-term experience for all age groups and class levels, no prior knowledge needed :) Without stress and pressure - fun and easy learning!

Are you ready to discover the magic of one of the most beautiful instruments ever created? Look no further! The piano has transformed my life and I'm confident it will do the same for you.

With my guidance, I'll equip you with all the tools you need to approach this majestic and stunning instrument. I'll take you on a personal journey, step by step, showing you how to master the Piano in a way that suits your individual style. Whether it's Jazz, Classical, or Pop, you'll fall in love with playing the Piano!

But that's not all - I'm also thrilled to offer you the opportunity to explore:
- Music theory
- Songwriting and Composition skills

With my expert guidance, you'll develop a well-rounded musical education that will take your talent to new heights.

So why wait? Get in touch with me today and let's embark on this wonderful journey together!

With these classes you can learn about different techniques and composition styles. There is a component of music appreciation, music theory, score creation and music production. My goal is to help you create your own music, whether it be popular songs or works for different instruments. You will be able to capture your creations in sheet music and you will have the basic tools to use editing software and DAWs. In the end I hope you can compose and record your own music.

Hello! My name is Rebekka. I have been playing the violin for over 20 years and am currently pursuing my master’s degree at the University of Music Würzburg. Ear training has always been one of my favorite subjects, and I am excited to share my knowledge and passion with you!
In my lessons, I offer a variety of methods to help you train your listening skills effectively. The lessons are tailored to your individual needs and interests so that you can get the most out of them.

Possible topics include:

🎵 Ear training exercises

🎵 Sight-singing

🎵 Improving your sense of rhythm

🎵 Singing and recognizing intervals & scales

🎵 ... and much more!

Whether you're a beginner or advanced, young or old – everyone is welcome! Feel free to reach out, and let’s develop your musical skills together.

Hello everyone :)
My name is Paul, I'm 30 years old and I have a bachelor's degree in mathematics. I have been teaching private math lessons for a long time and I love continuing to do so on this platform. I really enjoy helping people solve problems, get better at math and lose their fear of taking the next test. Together we can move mountains. If you would like to find out more about working together, just send me a quick message and I will get in touch with you. See you soon!

🎓 Entrance Exam & Independent School Preparation 🎓
I offer tailored tutoring for children preparing for independent school entrance exams such as he 7+ and 11+ exams. My focus is on helping students become comfortable with exam formats and approaches, so they can walk into their exams feeling calm and prepared, whether in one-on-one or small group settings.

If you are interested in group sessions but don’t yet have a group in mind, feel free to let me know! I’m happy to match learners with similar goals so we can create a small, friendly group together for fun and affordable tutoring.

Piano is an incredible instrument to learn - it provides you with a broad understanding of music, develops listening skills, and great dexterity, increases concentration, and much more.
I specialize in jazz piano but teach all musical styles according to the student's needs and wishes. Throughout the lesson we will learn music and songs, technique, harmony, ear training, theory, and rhythm - all subjects of music can be addressed through the piano!

Hello,

Electric & Acoustic Guitar tuition from complete beginners to advanced.
(Also Ukulele lessons would be available if fancy)

If anyone considers taking up the guitar exams and becoming a qualified guitarist, I can back you up.

Any styles,
pop/rock/blues/jazz/funk/classical guitar, etc.
Whatever songs/riffs/comps/(16th note) strumming patterns (lead guitar/rhythm guitar) harmony and music theory, solfeggio(aural), and so on.

Lessons will be tailored to you.
it's not brain surgery. it's going to be a lot of fun!

I can travel to your house or you come to my place.
Also, Skype lessons would be available.

Lessons are always for students.
So enjoy playing the guitar and lessons to move up to the next level.

Any further questions, please feel free to ask.
Thanks for reading and look forward to working with you.
You can't afford to miss it!!

Cheers,
Ryo

My name is Denise and I'm a professional singer with a singing master's degree from Catalonia's Music College (ESMUC) specialized in Historical Singing, Musicology and Music Education.
My experience runs mostly in early and chamber music, nevertheless I also have the experience and knowledge of popular musical styles such as Latin-American folk, jazz and musicals.
As a docent or vocal coach I've collaborated with different academic institutions and private artistic projects, focusing mostly on international students or social integration programs.

My main goal is to help the student discover her or his voice while enjoying making music.
No experience is needed, just bring your enthusiasm and favorite music.
Classes can be given either in English, Spanish, French or Deutsch.
There is no limit for styles, bring your favorite music and I will provide a safe environment for your personal and musical growth.

It will be a joy to listen to you.
Denise

Want to learn violin from the comfort of your home?

I’m a certified Suzuki method Violin and Viola teacher with more than 10 years of teaching experience in different countries like: Mexico, Costa Rica, Nicaragua, Germany and Hungary, as well as age range from 4 till 99.

I will be very pleased to make your learning experience as fun as possible and bring you a great learning outcome.

Musicwonderland is easy and enjoyable and with great enthusiasm :)
Violinwonderland, easy and fun. After a great international career, I love to teach everyone the violin! It's easy and based on the right moves that give the right sound directly :)

HI,
My name is Ewa and I have lived in Rome for more than 12 years and I have been playing the violin for approx. 30 years. I graduated from music institutes in Poland and the conservatories of Santa Cecilia and Rome and the one in Palermo.
I have been teaching the violin to children, teenagers and adults of all ages for more than 20 years. My studio is located in the San Pietro area (near the San Pietro train station).

Scientific research states that those who play the violin develop both cerebral hemispheres while normally only one develops. Furthermore, playing the violin can also offer various possibilities in life: perhaps you or yours no one knows yet.
Call me just to find out more and I will give you all the information.
Summing up what I offer are:

VIOLIN LESSONS FOR CHILDREN, TEENAGERS AND ADULTS OF ALL AGES AND ALL LEVELS
(Lessons can be held in Italian, Polish, English or German)
Through practice on the instrument, supported by the use of educational books and repertoire pieces, the student begins the journey with the study of the bow, the sound, the use of the fingers, the reading of the notes on the staff, the position of the hand on the keyboard, the refinement of reading.
The first structure and composition of the Violinstudio is perfect, with the melodies of the classical music starting ...
For beginner students I offer my help in purchasing the suitable instrument and give all the notwendige advice on other things (shoulder rest, strings, rosin, music stand, etc.) to purchase.

PROGRAM FOR BEGINNERS
* Correct holding position of the violin
* Correct headband holding position
* Study of Empty Strings
* Recognition of the duration values of notes and rests, work on the rhythm
* The use of the arch at the heel, center and toe
* Study of dynamics
* The use of the fingers of the left hand: the first finger, the second finger, the third finger and the fourth finger
* Reading of the score in association with what was played on the violin
* Basic techniques of using the bow
* One octave scales and arpeggios
* Skala in first position

INTERMEDIATE PROGRAM
* Techniques for using the left hand: Vibrato, Trill etc.
* Skaliert and two and three octave arpeggios
* Positions II to VII
* Exercises for changing positions
* Study of musical pieces of medium technical and musical difficulty
* Work on variety of musical styles

PROGRAM FOR ADVANCED PEOPLE
* Three-octave scales and arpeggios
* Double ropes
* In-depth study of the Baroque, Classical and Romantic repertoire
* Vorbereitung for exams to obtain the Royal Schools of Music Certifications
* Vorbereitung for auditions to enter the konservatorio and youth orchestras
* Strengthening and development of students' personal expressive and creative skills.
* In-depth analysis of the interpretative Kompetenz.

BAROQUE VIOLIN
This course is aimed at early music students of all levels, interested in baroque music and its performance practice, as well as all violinists interested in approaching and learning about the world of early music.
During the course we will work on the following aspects:
* Correct holding position of the violin
* Correct bow holding position and in-depth knowledge of right hand technique
* Development of bow technique, basic knowledge of the law of arches
* First approaches with the Polyphonic Repertoire for Solo Violin
* Performance of compositions of various levels of difficulty for solo violin and for violin and continuous bass using handwritten or printed sources from the Baroque era
* Basic knowledge of the main violin schools of the Baroque era and their stylistic characteristics.
* Strengthening and development of students' personal expressive and creative skills.
* In-depth study of the interpretative kompetenz of the repertoire between the 17th and 18th centuries
* Ornamentation and improvisation with the instrument

COLLECTIVE KAMERA MUSIC LESSONS / ENSEMBLE MUSIC
The music for the camera is the endgültige Grundlage für the Erstellung der Musik und die Kosten für the Music.
Registration for the courses is open to both individual instrumentalists and already formed musical groups of different musical genres and styles. I have a Musik-Kamera-Kamera in der Basis aller personal Experiences, Interest in Music and Vorbereitung, um alles zu tun, was möglich ist.
There is the possibility of creating groups of violinists to tackle chamber repertoires for violins alone.

EARLY MUSIC WORKSHOPS (2-3 days) FOR MODERN AND BAROQUE VIOLINISTS
3-4 Volts. The workshops are open both to early music musicians with instruments with antique settings (baroque bow and gut strings) and also to students who use modern instruments. During the workshops we will address the repertoire that gehören the period between the 17th and 18th centuries

No matter which style, you want to make progress in, i am here to guide you through the first steps/years! With 20 years of experience in playing both on el-guitars, and spanish guitars.

- all basics
- intuitive learning by blending practice and theory in well balanced portions.

Violin and viola learning for adult beginners and returning players or in the band
SEE ENGLISH BELOW

I have been teaching adult beginners and intermediates to play the violin and viola for 10 years. The focus is very different. One person would like to find relaxation in playing the violin. Another would like to be able to play a certain piece because he likes it. A third has picked up the violin again after a long time.

I have had violin lessons for > 10 years and am currently studying viola at the Conservatory of Bolzano. I have 10 years of teaching experience.

I teach classical and electric violin, always tailored to the student. The lessons can also be carried out using the Suzuki method.

Based on my band experience with violin/viola, I am also a contact person if you play violin or viola in a band.

Don't hesitate to get in touch if you have any further questions.
best regards
Julia

VIOLIN FOR BEGINNERS AND RETURNERS, also in a band
All levels and ages welcome!
Whether you are a complete beginner and would love to make your dream come true and learn the violin...
Or you haven't played for a while and would like to refresh your skills ..

******* Facts of the class ***********
- I was trained in classical violin for > 10 years and have a teaching experience of > 10 years
- currently I am doing conservatory studies in viola
- I am your coach for playing violin in a band because of my band experience as violinist and violist
- Most of my students are young and younger adult beginners or intermediates
- Anyone welcome who wants to get to know the beauty of this instrument!

******* Offer *********
- I offer lessons live and online
- for classical violin and viola,
- for electric violin (eg film music, recording and editing)
- lessons can be based on the Suzuki method of violin teaching

And always, tailored to the needs and interests of my student.

Please don't hesitate to contact me for any other questions!
Julia

Musical training; beginner improvement, catch-up; syllabus provided
Instrument, violin lessons, viola. Own your instrument
musical direction; beginner, improvement. Complete musical training required
vocal coaching: you want to be part of a vocal group or choir, but you have difficulty finding, asking your voice, a few sessions can help you.
For each type of course, I look for solutions that are adapted to you.
It is also possible to have sessions via the internet (Zoom or other)

DE
Graduated violinist from the University of Art in Graz (BA, BA, MA violin and instrumental pedagogy) offers violin lessons and music theory lessons! Home visit possible in Graz.
With many years of experience, for all age groups, for beginners or advanced, even without prior musical knowledge! Fear-free, stress-free, reading music not necessary :)
No pressure to perform, just have fun playing! :)

Lessons possible in German, English, Hungarian, Serbian or Croatian! :)

EN
Professional violin player and teacher (Master of Arts and Musical pedagogy) offering violin and music theory lessons!
With a long-term experience for all age groups and class levels, no prior knowledge needed :) Without stress and pressure - fun and easy learning!

Are you ready to discover the magic of one of the most beautiful instruments ever created? Look no further! The piano has transformed my life and I'm confident it will do the same for you.

With my guidance, I'll equip you with all the tools you need to approach this majestic and stunning instrument. I'll take you on a personal journey, step by step, showing you how to master the Piano in a way that suits your individual style. Whether it's Jazz, Classical, or Pop, you'll fall in love with playing the Piano!

But that's not all - I'm also thrilled to offer you the opportunity to explore:
- Music theory
- Songwriting and Composition skills

With my expert guidance, you'll develop a well-rounded musical education that will take your talent to new heights.

So why wait? Get in touch with me today and let's embark on this wonderful journey together!

With these classes you can learn about different techniques and composition styles. There is a component of music appreciation, music theory, score creation and music production. My goal is to help you create your own music, whether it be popular songs or works for different instruments. You will be able to capture your creations in sheet music and you will have the basic tools to use editing software and DAWs. In the end I hope you can compose and record your own music.

Hello! My name is Rebekka. I have been playing the violin for over 20 years and am currently pursuing my master’s degree at the University of Music Würzburg. Ear training has always been one of my favorite subjects, and I am excited to share my knowledge and passion with you!
In my lessons, I offer a variety of methods to help you train your listening skills effectively. The lessons are tailored to your individual needs and interests so that you can get the most out of them.

Possible topics include:

🎵 Ear training exercises

🎵 Sight-singing

🎵 Improving your sense of rhythm

🎵 Singing and recognizing intervals & scales

🎵 ... and much more!

Whether you're a beginner or advanced, young or old – everyone is welcome! Feel free to reach out, and let’s develop your musical skills together.

Hello everyone :)
My name is Paul, I'm 30 years old and I have a bachelor's degree in mathematics. I have been teaching private math lessons for a long time and I love continuing to do so on this platform. I really enjoy helping people solve problems, get better at math and lose their fear of taking the next test. Together we can move mountains. If you would like to find out more about working together, just send me a quick message and I will get in touch with you. See you soon!

🎓 Entrance Exam & Independent School Preparation 🎓
I offer tailored tutoring for children preparing for independent school entrance exams such as he 7+ and 11+ exams. My focus is on helping students become comfortable with exam formats and approaches, so they can walk into their exams feeling calm and prepared, whether in one-on-one or small group settings.

If you are interested in group sessions but don’t yet have a group in mind, feel free to let me know! I’m happy to match learners with similar goals so we can create a small, friendly group together for fun and affordable tutoring.

Der richtige Lehrer Garantie

M Dallas kontaktieren