DonJuan, I have used those big page clips and they have worked...also, don't know if this is an option for you or not, but many times I've had this problem (expecially when playing from a volume with many pieces in it)..I just make copies of the pages I need, punch holes and insert them into a binder. Instead of carrying around 3 or 4 big books...I just have a small binder with the pieces I need. You could also use a large elastic band to put around the piano stand (the part that the back of the book goes against)...insert the book under the band and it won't move. This would be inconvienent if you were having to turn pages frequently, however if you are on the same page for a while, it should work well.Hope this helps.S
You may find this helpful...here are to sites where they sell bookclips designed to hold books/pages open:www.bookaddicts.comwww.ezbookclip.comThe second looks good in that it would be easier to turn the pages.Hope this helps.