Adafruit "Music Maker" MP3 Shield for Arduino w/3W Stereo Amp - v1.0 Bend all audio files to your will with the Adafruit Music Maker shield for Arduino!
EasyVR Shield 3.0 - Voice Recognition Shield Do you make time to talk to your Arduino? Maybe you should!
SI4735 AM & FM Receiver Shield
MIDI Shield The MIDI Shield board gives your Arduino access to the powerfulMIDI communication protocol
Music Instrument Shield Do you ever wish your Arduino was more musically talented? Or maybe your project could use some cool sound effects. The Musical Instrument Shield is an easy way to add great sounding MIDI sound to your next Arduino project.
Wave Shield Adding quality audio to an electronic project is surprisingly difficult. Here is a shield for Arduinos that solves this problem.
SparkFun MP3 Player Shield This new revision of the MP3 player shield retains the awesome MP3 decoding abilities of the last version but adds the storage functionality of the SD card shield.