Use libao audio output library for sound playback
Name Category Description
cmus media-sound Ncurses based music player with plugin support for many formats
cynthiune gnustep-apps Free software and romantic music player for GNUstep
fuse app-emulation Free Unix Spectrum Emulator by Philip Kendall
giac sci-mathematics A free C++ Computer Algebra System library and its interfaces
herrie media-sound Herrie is a command line music player
higan games-emulation Multi-system emulator focused on accuracy, preservation, and configurability
icewm x11-wm Ice Window Manager with Themes
libtimidity media-libs MIDI to WAVE converter library
mpd media-sound The Music Player Daemon (mpd)
rdesktop net-misc A Remote Desktop Protocol Client
sox media-sound The swiss army knife of sound processing programs
speech-dispatcher app-accessibility Speech synthesis interface
timidity++ media-sound Handy MIDI to WAV converter with OSS and ALSA output support
xmms2 media-sound X(cross)platform Music Multiplexing System, next generation of the XMMS player
ydpdict app-dicts Interface for the Collins Dictionary

Thank you!