So I joined my high school's jazz band several months ago. I love playing in it, but there's one problem: practicing. No tune we're playing is particularly difficult, I've been playing for around 4 years, so there's not a ton I can't play without practice. But while the lines sound great in an ensemble format, they just don't sound good myself in my room with a metronome. It used to not be a huge issue, and we weren't playing a lot so I could upload the music to guitar pro or play with a track online. But nowadays, there's a lot of music, and most of it doesn't have a professional track online. So herein lies the problem, i tried practicing for an hour with just a metronome, and I absolutely couldn't do it. I lost interest, wouldn't play the right notes, etc. This is a problem since most of the songs involve just a straight quarter note part that's pre-written. When improv-ing I do just fine in rehearsal, but when reading it sounds off a lot, something that a little practice would cure. I'm trying to practice with the pianist as often as I can, but is there any other advice some of you would like to share to make practicing uninteresting lines more bearable? Thanks ahead of time!