I'm not necessarily talking about the trumpet here. I like jazz but with classical you really get to know a piece and you are required to play to play it as close to perfection as possible. When playing jazz all your doing is learning the theory and you make up something new every time. You can learn solos and improve your improv but there is no solid thing you can look back on and say you achieved. Don't be harsh i am generalizing because I cannot express myself in better terms... Ps. If you are wondering why I said classical or jazz. The classical trumpet repertoire isn't great... But I like jazz a lot and I'm also considering playing classical guitar. It seems really difficult though. If I could do both that would be great but I'm probably gonna stick with trumpet. Which brings me back to the question at hand: guitarclasical or trumpet jazz?