Book Level
- 1
- 1 |2
- 1+
- 12
- 1-2
- 13
- 1-5
- 16
- 18
- 1A
- 1A|1B
- 1B
- 2
- 2 Medium Voices
- 2.5
- 2-3
- 2A
- 2B
- 3
- 3.5
- 3+-5
- 33
- 4
- 5
- 6
- 64
- 7
- 74
- 8
- A
- A|B
- Adult 1
- Adult 2
- Advanced
- B
- Beginning
- Big Note
- C
- Clearance
- D
- Difficult
- E
- Early Intermediate
- Early Intermediate | Intermediate
- Early Intermediate | Late Intermediate
- Easy
- Easy | Medium
- Elementary | 1
- Intermediate
- Intermediate | 4
- Late Elementary | 1.5
- Late Intermediate
- Late Intermediate | 5
- Late Intermediate | Advanced
- Low Voice
- Mark Hayes Vocal Solo Collection
- Medium
- Medium Easy
- Medium High Male Voice
- Medium Low Voice
- Medium Voice
- Medium Voice in F
- Medium Voice in G
- Medium-Advanced
- Moderately Easy
- Off-Staff Starter
- On-Staff Starter
- Preparatory
- Primer
- Primer A
- Primer B
- Solo Voice
- Solo Voice in A-flat
- Vocal Solo
- 1 | 2
- 10
- 11
- 1A-3
- 1A-4
- 2 | 3
- 22
- 2A | 2B
- 31
- 32
- 34
- 35
- 36
- 37
- 38
- 39
- 3A
- 3B
- 4|5
- 4A
- 4B
- 9
- C|D|E|F
- Complete 1, 2, 3
- Complete 2 & 3
- F
- G
- Group 3 & 4
- H