I bought one of the books from Rikki's coarse entitle "100 Left Hand Patterns",to try before trying the coarse itself.

I was looking for a method of left hand accompaniment that can be used for different songs. It is a good book for those that are not absolute beginners,as we know chords and right hand melody. I find that for many songs,one can pick out the accompaniment that fits,and sounds pretty good for arpeggiating type left hand. I do think,however,that there is nothing like the real accompaniment written by the composer for a particular song. I should live so long as to learn one at a time,and build up a repertoire.