Perfect Piano for Android

Great little app for working out a tune or just amusing yourself in a spare five minutes... This app can be configured for other instruments as well as piano, but the piano is the best and most functional option - it has guitar and drum options, but they are really just add-ons and not as good as the piano/keyboard default option.
A range of 'voices' are available including organ, synth and electric piano - just over an octave is displayed as piano keys on your touch-screen, and a multi-touch device enables chords to be played. You can change the section of the keyboard that you want to play with a full 7 octaves to choose from.
Obviously no a serious musical tool, but nonetheless fun and really well presented, there is even an option to record your 'ditty' which you can also sing along with...!
All in all fun for anyone with an interest in piano or keyboards