IF YOU THINK there is a bit of unexplored music in you, then download this app that could make you a composer. The app lets you add different instruments at various tempos while sticking to a certain style of music. We had trouble adding the vocals to the tracks, but the end results even without it was fun. There are just two styles — pop and rock — available for free. Other styles like rock, blues and reggae are available as in-app purchases.