I've recently taken up the trumpet again after about 6 years off. I've bought a copy of Allen Vizzutti's Technical Studies and I'm finding the exercises very good, the rate of progression at the moment is very rewarding and better than I think it ever has been, however my practice sessions are normally limited to around 45 minutes and I'm wondering how best to go about using the studies. There's a lot in there lip flexibility, tonguing, range building, long tones and semi-quaver exercises in challenging keys. I find there's little guidance in the book about how to structure a practice session and given the limited time I usually have I'm not sure what's best to work on. I guess I normally end up doing a bit of everything at the moment.
Any advice appreciated,