If you fall in love with the Prelude's styles and sounds, you are good to go. But if you want to edit ANYTHING, you are boned, basically. Volume or mute, and that's IT. You can't even change the sound a style part uses.

It's a preset machine. Not even a software editor, just extract from MIDI. Horribly time consuming to do even basic stuff (want more or less chorus on a style part? Probably take you over half an hour with GOOD computer skills )

Get the E50/60, and buy a Sonic Cell...