Half-flats and half-sharps are formed by adding -eh
and
-ih
; the following is a series of Cs with increasing pitches
{ ceseh ceh cih cisih }
Micro tones are also exported to the MIDI file
There are no generally accepted standards for denoting three quarter flats, so LilyPond's symbol does not conform to any standard.
This page is for LilyPond-2.5.11 (development-branch).