Get 50 Free MP3 Music Downloads + 1 Free Audiobook with an eMusic.com 14 Day Free Trial.
You get £4 Quidco, but their link takes you to a page offering only 25 free tracks. However, if you visit emusic.com/lovefilm first then click the quidco link, you still end up being offered 50 tracks! This is what happened for me using Google Chrome, so if it doesn't work post below!
As in all cases, there is no guarantee of getting the cashback on this. Also, eMusic doesn't have the biggest selection of tracks, but I eventually managed to find quite a lot of new stuff!
It's also worth mentioning that you must download your free tracks before you cancel (you have 14 days to do this). Cancelling is done hassle-free online.