GarageBand Lessons for Theatre Play

INTRODUCTION I am seeking an ideally London-based freelancer who might be familiar with GarageBand for Mac, so that I could get perhaps a day or two of lessons so that I can learn the rudiments of this on my own MacBook Pro laptop platform... (Budget: £18 - £36 GBP, Jobs: Audio Editing, Audio Services, GarageBand, Music Production, Sound Design, Voice Over)