C a2 b2
| Input interpretation |
|---|
| C_3 | A_2 | B_2 (musical notes) |
| Intervals |
| | type | pitch difference C_3 to A_2 | minor 3rd | -3 semitones A_2 to B_2 | major 2nd | +2 semitones |
| Scales containing C, A, B (or enharmonics) |
| C major scale A minor scale E minor scale G major scale C Neapolitan major scale |
| Parsons code |
| *du |
| Pitch-set operations |
| set class | 0 9 B interval vector class | <1 1 1 0 0 0> (B = 11) |
| Standard frequencies |
| C_3 | 130.813 Hz (hertz) A_2 | 110 Hz (hertz) B_2 | 123.471 Hz (hertz) (with middle A tuned to 440 hertz) |
| MIDI notes |
| 48 | 45 | 47 |