Hi I'm not sure if this is what you're looking for but in the past I've used this old Coco pops advert. http://www.youtube.com/watch?v=P6MWhn1eixI I play the clip a few times and then mute the sound and play it again. I then get pupils to compose some of the sound effects from the advert, create a new slogan etc. I've done this with Garage band and just using keyboards in the past so I guess ejay could work too (though I'm not too familiar with this programme). Pupils seem to really enjoy it and I've been able to do it with a whole range of differing pupils needs. Hope this helps!