| Copyright | (c) Hans Hoglund 2012 |
|---|---|
| License | BSD-style |
| Maintainer | hans@hanshoglund.se |
| Stability | experimental |
| Portability | portable |
| Safe Haskell | None |
| Language | Haskell2010 |
Music.Pitch.Absolute
Description
Absolute pitch representation.
The canonical pitch representation is frequency in Hertz (Hz). For conversion, see
HasFrequency.
- newtype Hertz = Hertz {}
- data Cents
- data Fifths
- class HasFrequency a where
- fifths :: HasFrequency a => a -> Fifths
- cents :: HasFrequency a => a -> Cents
Documentation
Absolute frequency in Hertz.
Number of pure octaves.
Cents are a logarithmic representation of frequency such that
f * (2/1) = frequency (cents f + 1200)
Number of pure fifths.
Fifths are a logarithmic representation of frequency.
f * (3/2) = frequency (fifths f + 1)
class HasFrequency a where Source
Instances
fifths :: HasFrequency a => a -> Fifths Source
cents :: HasFrequency a => a -> Cents Source