BarFly is a text editor/player/viewer for abc music files.

abc is a system of notation for music which uses ordinary ASCII text to represent the symbols which you would normally write on music manuscript. It is simple, human-readable, and if you can touch type it is much faster to enter abc at the keyboard than it is to use a graphical music program to place notes on a staff using the mouse. Because it's plain old ASCII, you can use it to post music to newsgroups (it's very bad netiquette to post MIDI, GIF or other binary files to text-only newsgroups) email tunes to your friends, or use it as a highly efficient way of storing music (you can store thousands of tunes on a single floppy disk).

New in v1.7.5

• Fixed a bug which caused the program to lose track of its windows, misbehave and eventually crash after using the Print... or Page Setup... commands under some versions of Leopard.
• The File Search command will now search any files with a .abc or .txt extension in addition to files with the file type set to "TEXT".
• Using aligned words (w:) after un-aligned words (W:) in a multi-voice tune will no longer cause the program to crash. (It still won't work - you should not follow a W: field with a w: anyway.)
• By default, the program will now not allow you to type "smart" quotes into the editor. This was causing problems with OS 10.6, which automatically substitutes smart quotes for the straight ascii quotes " and '. Although you can turn this behaviour off in the Language and Text preferences pane, the change does not stick when you re-start (an Apple bug). Smart quotes have no place in abc, and guitar chords written as "Gm", or high notes written a''2 won't work. If you really want to enter smart quotes (e.g. in the title or words of a tune), there is a checkbox in the General Preferences dialog which will allow it (use Option [ or Option ] to get these characters).