Play V6 is a brilliant little project that is a 6-part, 8-bit music player, made from an Arduino Uno, some capacitors and resistors.
Ever wanted to make floppy drives play the James Bond theme? This nutty hacker has created a mini orchestra with 13 floppy drives and a HDD
Due to limitations of the Arduino, music is generally a no-go, However, APC have cunningly managed to get the Arduino to play audio.
This giant sphere is made up of 100's of LEDs to create a spectacular light show that changes in time with the music.
The SoundDuino 3 offers CD quality recording and playback in a simple shield. You can finally add high quality music to your projects.
The DigiX is an Arduino Due compatible board, with more I/O pins, WiFi, RTC, USB OTG, and audio support with an on-board socket.
The UDOO is a new prototyping board that combines the power of the Arduino, with a quad cored ARM processor, running Linux or Android.