These expanding scales form part of the Bill Adam Routine. I hope they prove useful to you in building your range. As you will see, the first exercise is labelled "beginner" and the second "intermediate"! Although beginners might be able to play the first phrase of the "beginner" exercise, to play it all requires a standard of grade 4-5. The "intermediate" exercise is for players of grade 6 and above. There is a third exercise, his "original" one, and it will take you to TOP F# ABOVE TOP C! I will post it on the site as well, if anyone is brave enough to try! I got these exercises from the jazztrumpet.com site. It has a lot of information on it, so why not go on a visit!