Portability | non-portable (TF,GNTD) |
---|---|
Stability | experimental |
Maintainer | hans@hanshoglund.se |
Safe Haskell | None |
Alterable class
Class of things that can be altered.
accidental (sharpen a) = sharpen (accidental a) accidental (flatten a) = flatten (accidental a) sharpen . flatten = id
Increase the given pitch by one.
Decrease the given pitch by one.