CarlTune is a simple chromatic tuner for guitar, bass, violin, ukulele, cello, and other musical instruments. The app displays graphically and digitally the frequency, octave, and cents on a single screen. It lets you easily know where the current tuning sound is in scale and how far it is from standard frequency
Party Mixer lets you play music and mix like a DJ at parties. Play 2 songs simultaneously and cross-fade between them! Prepare a playlist, then simply drag-and-drop to play the song into one of the player decks, or enable Auto DJ to have the mix done automatically
Intonation - This Android app lets you fine tune your voice before any vocal performance. Simply pick the chord you want to hear and you are ready to sing
FreeMP3Droid - An open source,free,gratis,libre mp3 converter released under the LGPL.
http://code.google.com/p/freemp3fordroid
Open Source Project, looking for patches!!
v 1.3.1 Fixed Bug
MicDroid tunes your voice! Reproduce the effects you hear in music yourself! If you've been waiting for the iPhone's famous I Am T-Pain app to make it to Android, you should try out MicDroid! Always sing in tune! Offers plenty of options for pitch correction!
Robotic Guitarist Free - Guitar emulator + Chord guide + Tuner + Metronome
Robotic Guitarist is a virtual guitar for your device. This application will be useful both for those that already play the guitar and learners, and even if you can't play but want to get some fun or experiment with its sounds
GStrings - a chromatic tuner for the guitar, violin, or any other instrument. This is the ad supported version of gStrings ( www.cohortor.org/gstrings ), a chromatic tuner application measuring sound pitch and intensity
PocketAudio Headphones for Android - allows you to use your Android device as a wireless speaker for your computer. The app automatically forwards audio played on your computer to your mobile phone via WiFi.
PocketAudio Headphones can be used to play sound from any Windows or Mac OS application