Cheers Shreckfingers.The site seems pretty ( very ) good. Excuse me for being so dumb ( I´m from the Bob Dylan era where backing were the dudes in the Inkspots ) and I don´t know if you know about this, but the old midi-files could be messed around with on a laptop ie key-changes, taking out instruments etc. Is this possible with the mp3 format ? I would imagine so..........an even more stupid question, but can my mp3 be plugged into my laptop once I´ve down-loaded from, for example, the site that you put me onto ? Thanks for your :) time and trouble. Terry. Southern Spain.