How can I reach high notes on the bass trombone?

Question

I am playing a bass trombone and never can seem to hit G# and A (sixth above middle C). I can hit G without too much trouble but can almost never get G# and above. I've tried long tones up there and glissing up from an F in fourth position but it cracks at the G# even when I blow more air. I've been trying for about a month now and no luck.

Any advice about how I can hit the G#, and A?

Answer 1

You've done a lot of the obvious so I'd suggest trying this site:

http://bands.army.mil/masterclass/tusab/...

It should help on range extensions.

Good Luck!