VOCAL lessons are divided into 2 parts - 1) Warmup Exercise and 2) Singing Exercise. We do both parts in every lessons. Ideally we spend every 2-3 sessions for each song. For kids, a 30-min online lesson / 45-min face-to-face lesson would be long enough for their attention. For adults, it's good to start with a 50-min online lesson! Also, we do music appreciation occasionally during the session. Some other learning materials like music videos are applied based on song choices.