Important note: I use 'play' at the command-line to play wav files, and many of these scripts depend on that. You can do this by making an alias with 'wavplay' in your $HOME/.bashrc file, for example.
PVBox -- phase-vocoder effects
These scripts were written on top of Eric Lyon's PowerPV and Chris Penrose's PVNation software and were designed to read and write .wav files. I use these mostly as a kind of special-effects box. Requires PowerPV and PVNation, and a perl interpreter. A couple scripts also use cmusic commands.
Also included in this bunch are "concorde.pl" and "bestmatch.pl", to extend Common Music functionality to include Concorde and Minion command-line functions.
InterpCS -- Glissandi in Csound
These scripts take a csound score and trace polynomial curves between each attack point, turning your pretty melody into a creepy mess of glissandi. Writes a csound score. Requres a perl interpreter and the Math::Polynomial perl module.
TrikBox -- running TrikTraks
These scripts allow you to do a couple things using the intriguing and unpredictable TrikTraks software. Requires TrikTraks, WaveTools, and a perl interpreter.