Realtime Worlds just published the first All Points Bulletin video podcast of 2010, and it focuses solely on the game's music editor. Senior Sound Designer Stuart Ross demonstrates how players can create songs and themes using the music studio in APB:

"Themes are short, five-second pieces of music which are applied to your character and played back in-game, and songs are longer pieces of music which you can export from the music tool into your track list, and you can then play them back from your car."

Themes and songs are freely tradable on the marketplace in APB, which means you could make a song for other players to purchase. Check out the full podcast after the jump.