Quarter tone

From MusiCAD

A quarter tone increase is written with a half sharp half sharp

A quarter tone lowering by half a flat; half flat

quarter tones

Input is done with the accidental menu doublesharp or <alt-F11>

Immediate insertions with <ctrl-shift-#>, or <ctrl-shift-b>

Quartertones are played by MusiCAD as such, but are not taken into account in the sharps and flats automatic placement mechanism (in fact, a half sharp and a half flat are treated as a decorations)