New in Wheezy: PMW
One of the things I do with computers is "do stuff with music". I'm not a professional musician by any means, but I do sometimes have a need for some software to do some music editing.
In the past, that meant using GNU LilyPond; and while that's certainly an interesting piece of software, it has some idiosyncracies that have made me dislike it in the past. So when I learned about PMW, written by Philip Hazel (of PCRE and Exim fame) I was intrigued.
PMW has several advantages over lilypond, in my opinion. To name but two: its syntax is less silly, and it takes far less time to convert something from source to graphic, to the extent that I've considered creating an editor which would update the result after every keystroke, something that just isn't possible with lilypond.
The decision to upload pmw into Debian was just a no-brainer, and it's saved me some time since, already. Enjoy!
PMW is great, and I used it for a while, triggered by your earlier post. MIDI support seems to be limited though. That's why I finally switched to abc: syntax is comparable to pmw, it seems to be widely used, support for MIDI is significantly better, and there are programs which can convert or import abc. Some are even available in Debian (abcmidi, abcm2ps, tclabc).