- 10 Singing Warm Up Exercises: Female Alto / Male Baritone, Vol. 1 · 2017
- 10 Singing Warm Up Exercises: Female Alto / Male Baritone, Vol. 1 · 2017
- Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 2 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm Up Exercises: Female Alto / Male Baritone, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm Up Exercises: Female Alto / Male Baritone, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm Up Exercises: Female Alto / Male Baritone, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017
- 10 Singing Warm up Exercises: Male Pop Tenor / Female Soprano, Vol. 1 · 2017