i bought a trumpet a couple of weeks ago and have been messing about with it since. on a good day i can do bottom F# to high C and am playing though a few tunes to get a feel for it - easy melodies like 'all blues'.
anyhow, the thing that is frustrating me is that my lips go after about 1/2 an hour - especially if i am trying to regularly hit notes above the staff.
i have been a guitar player for nearly 30 years and have professional-level theory/practice skills (jazz & classical) and also have taught the instrument and music theory.
i know trumpeter's lips can go (when i was studying the jazz group tutor was a trumpet player and he taught us the limitations of the player/instrument for when we were writing for it), but how long does it take before i will be able to practice for a good 2 hours +? i am used to practicing for around 6 hours when i was seriously playing guitar and it would be nice to be able to get some hours in on the horn!
and are there any exercises to develop lip strenght?