Tune is basically what you always looked for. It’s the best, absolutely free alternative to Spotify.

Turns your android phone in a full featured FM Radio

Listen to your favourite Indonesian radio station via streaming 3G/Wifi. Various Indonesia station radios ranging from news, pop, rock, to dangdut.

Wireless MIDI controller for your favorite DJ application.

Audroid allows you to monitor and manage the status of all the Android volume levels independently.

Also Audroid Pro with all the features enabled is on SlideMe:
http://slideme.org/application/audroid-pro

The best virtual Piano for Android™

music charts

Arrow Jazz FM brings you cool, funky jazz all day long.

Features: 
- Real instrument tone.
- Simple to play! You can easily play a famous song in just 3 minutes!
- Over 10 categories of songs.(including Hit Song, Classical, Indie Pop, New Age, Rock, Folk, Pop, Country Music, Blues, Movie Themes and Band)
- Band-mode is coming soon. You can easily create a band by WIFI or Bluetooth. It will applied to all the music instrument of Cool Series! 

The best guitar on Android. Play chords, scales and guitar solos

Peter Music Mp3 Downloader - Through this app you can search popular songs, mp3 music you like !

The Best Guitar Songs FREE includes lyrics and tablatures for some of the best songs in recent history. You will find comments and recommendations, along the picking, solos, chords, licks and other useful information like the entry music.

Keychord is the dynamic dictionary / reference app for piano chords and scales. Use it to find all the scales and chords!