This article is from the Bagpipe FAQ, by Denise McNickle email@example.com with numerous contributions by others.
There are several software packages available for pipe music. Some are
free and some are commercial. The most common free package is Bagpipe TeX
(see 6.3), which can be used on almost any hardware platform. There is also
some publicly-available software to play and/or convert tunes written in
"abc" notation (see 6.4 and 6.5). Two commercial packages often mentioned are
Robert MacNeil's "Bagpipe Music Writer" (for PC's), and "Lime" (for Mac).