XiX Music Player is a music player for MP3, Ogg, M4A, AAC, FLAC, APE, and OPUS files. It is easy to create and maintain your own playlists. There is an integrated lyric viewer that searches for the lyric of the song you are listening to. If the CD cover is found, it is also shown. You can also rip CD tracks to MP3 or FLAC. Listening to your favorite online radio stations is also possible. The focus is on having fast control of all your music.
DR14 T.meter is a commandline tool for computing the Dynamic Range of your music according to the procedure used in the offline meter released by the Pleasurize Music Foundation. It is very useful to measure how loud your music is and to understand that a good quality album always has a good dynamic. It's also useful for understanding the effects of the so-called loudness war.
Peyote is an audio player with a friendly MC-like interface. It is designed specifically to work easily with cue sheets. It plays wv (wavepack), WAV, FLAC, APE, Ogg, WMA, and MP3 formats. It supports ID3v2, APEv2, FLAC, and Vorbis tags; multiple playlists; and tabs. It can copy, move, remove, and rename files.
SvOlli's Little Audio Related Thingies, or SLART for short, is a compilation of rather simple programs that are related to audio files: it consists of a player (Partyman), a CD ripper, a tag editor, and some other tools. These programs can communicate with each other via a custom IPC bus, so a newly ripped track can be automatically queued in the player, for example.
Crossfire is a Firefly Media Server client written for the Apple iPhone and the iPod touch. It has support for streaming, browsing, and searching music content. It supports both Mobile Safari and FireFox, but can be configured for various other devices such as Windows Mobile, Symbian, etc.
Mylene is a command line MPEG audio player. It can play plain and system embedded MPEG audio streams and works for Linux OSS and ALSA emulated OSS and Mac OS X. The player can be used interactively by telling it to establish a UNIX or INET server on which commands can be received. It features sophisticated song selection filters, the ability to interpret programs written in a C-like programming language and user formatted text output among others. The seek-h262 MPEG decoder is required for audio and system MPEG decoding.