google music

MP3-Info is a clever companion that helps you organize your music collection.

It converts RGB value of an image and surface points of 3D object into music.

Pollux can organize your music library.

Get your music, pictures and video on your phone - the OS X Way!

PlayerPro is a music composer and sound editor.

iTheater can manage, play, share your photos, movies, music.

convert music files to M4R and convert M4R to other audio formats on Mac

33 RPM is an excellent tool to transcribe music.

It plays the music from arcade games by running the code in the original ROMs

Softsqueeze is a music player for you that works with the SqueezeCenter.