- Difficulty (216)
- Group (609)
- C3LA (84)
- C4 (347)
- Infinitus (28)
- Inversion Ensemble (98)
- Triad (70)
- Instrument (620)
- A cappella (498)
- Brass instrument (2)
- French horn (2)
- Trumpet (1)
- Ensemble (9)
- Amplified ensemble (1)
- Rock trio (2)
- String quartet (3)
- String quintet (2)
- Fixed electronic track (12)
- Keyboard (67)
- Organ (7)
- Piano (56)
- Synthesizer (2)
- Live electronics (2)
- Orchestra (1)
- Other instrument (8)
- Percussion (28)
- Body percussion (2)
- Drum set (3)
- Glockenspiel (2)
- Handbells (1)
- Handheld percussion (6)
- Vibraphone (3)
- Plucked string instrument (9)
- Electric bass (2)
- Guitar (2)
- Electric guitar (2)
- Harp (7)
- String instrument (9)
- Wind instrument (19)
- Language (412)
- Length (321)
- Short (< 3 min) (32)
- Medium (3-6 min) (181)
- Long (6-10 min) (69)
- Very long (> 10 min) (39)
- Mood (278)
- Type (631)
- Voicing (410)
- 2 voices (1)
- Double chorus (5)
- Flexible chorus (1)
- Low voice chorus (18)
- Mixed chorus (363)
- 3 part mixed chorus (4)
- 4 part mixed chorus (230)
- 5 part mixed chorus (21)
- 6 part mixed chorus (30)
- 7 part mixed chorus (5)
- 8 part mixed chorus (63)
- 9+ part mixed chorus (9)
- Treble chorus (37)
- Triple chorus (1)
- Unison (2)