I got a (v. v. cheap) flute on ebay and have had it repaired (which meant I got a Boosey & Hawkes for the grand total of £70!). I am going to get lessons soon but will have to wait until I have more money. In the meantime, I want to start with some exercises so that I can work on developing an embouchure and learn where the notes are. I need to double check how to change octaves - is it correct that the flute doesn't have a octave key like the clarinet/oboe? So you would have to change octaves by changing the shape of your embouchure, much like changing open notes on a brass instrument? If this is right, can anyone point me to a good website (preferably with pictures) that can show me how to do this?

Thanks!