Well if you do go on sunday it would be useful to be able to recognise you in the throng - perhaps you could email me a link to a piccie or something. rmepstead@btinternet.com
Midis loaded as style files means you can mute any instrument to suit whatever you're doing and unmute instantaneously.
MP3 files purchased from www.karaoke-version.co.uk can be customised at the purchasing stage or subsequently to add or remove instruments without additional cost.