You're tired of listening to the same old CDs, and you want to branch out with some new tunes. But you don't want to buy a disc on a whim, only to discover that you hate it. A free and easy solution is available at www.musicstrands.com. Start by creating a list of songs by bands you already know you like. The site will use it to recommend other artists and songs you might enjoy; you can then listen to samples to see if you do. Result: You won't have to pony up to buy Coldplay cold.