Musical prefix
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A musical prefix is a numeral or other prefix used in music theory, specifically musical tuning.
| Prefix | Meaning (#) | Terms |
|---|---|---|
| Semi- / Half- | 1/2 | semiditone , semi-augmented (fourth), semi-diminished (fifth)
|
| Tri- | 3 | Tritone, tritonic |
| Sept- | 7 | Septimal
|
| Undec- | 11 | Undecimal
|
| Tridec- | 13 | Tridecimal
|
| Septen- | 17 | Septendecimal
|
| Novendec- | 19 | Novendecimal
|
| Milli- | 1000 | Millioctave |
| Dia- | through | Diaschisma, diatessaron, diapente, diapason |
| Di- | 2 | Diesis, ditone |
| En- | to make into, to put into, to get into | Enharmonic
|
| Apo- | away, different from | Apotome
|
| Im- | not | Imperfect (fourth) |
| Sesqui- | 1-1/2 | sesquialterate
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