http://www.alsa-project.org/~andy/ PCM player: written for the ALSA driver and library, but supports other out systems like OSS and esd. Plug-in interface which already supports other file types, special effects, etc. http://www.68k.org./~michael/audiofile/ An API for accessing a variety of audio file formats. http://jpj.net/~trevor/aumix.html Adjusts an audio mixer. X and ncurses interfaces. http://www.eca.cx/ Audio software for Unix. http://www.ffem.org/gdam/ A digital audio mixing package. http://glame.sourceforge.net/ A free and open source, extensible audio editor. http://www.cs.uu.nl/people/hanwen/lilypond/ High quality music typesetter. Inputs files in the Mudela language and outputs postscript sheet music and midi files. Part of the GNU Music project. http://infinity-plugin.sourceforge.net/ Project developing a full screen visualization plug-in for Xmms, a Linux media player. http://www.geocities.com/harpin_floh/kguitune_page.html A program for tuning guitars and other instruments that is available for download. http://www.hitsquad.com/smm/linux/ Free and Shareware programs: screen shots, user reviews, more. http://www.crosswinds.net/~linuxmusic Making music with Linux. http://www.sci.fi/~mjkoskin/ A variety of programs that are audio-related, including a de-noiser, a program that generates midi files from fractals, and software that creates sound from a gif file. http://www.bath.ac.uk/~masjpf/rose.html An integrated midi sequenser and musical notation editor for Unix-like systems. The latest version is the pretty old, but stable Version 2.1. Rosegarden is currently being rewritten to be extensible and to overcome limitations in the previous design. Rosegarden 3.0 will use GTK+, CORBA and GUILE. Sadly, progress has been stalled for a while now. http://sound.condorow.net/ This site has links to everything related to music on Linux. Also has links to programming documentation, sound repositories, other sites etc. Updated frequently. http://www.tu-harburg.de/~semk2104/soundtracker/ MOD tracker for X, similar to FastTracker. Also includes a sample recorder and editor. http://www.goice.co.jp/member/mo/timidity/ A midi to wave converter. Uses Gravis Ultrasound-compatible patch files. Can be used to play midi-files on computers with soundcards without midi-support. http://xmp.helllabs.org/ Open source (GNU GPL) portable module player for Unix or Wind32.