Playing around with the Sony Ericsson S500c, I tried out the built-in MusicDJ app. Similiar to GarageBand it allows the user to build up a song in blocks. It’s a bit fiddly trying to compose on such a small screen and it’s really something that you need to do either with headphones on or away from other people. MusicDJ uses MIDI rather than real audio clips to keep the file sizes small but it is possible to convert to audio as follows. I transferred the file to my Mac (by emailing it to myself from the phone)…