Andrew Hitz is a former Boston Brass tuba-ist. His blog is worth subscribing to.
This quote is from Doug Yeo, the former bass trombonist for the Boston Symphony. Thing is, it works for ANY music and any musician. Great advice.
If you practice, you get better.
If you get better, you play with better players.
If you play with better players, you play better music.
If you play better music, you have more fun.
If you have fun, you want to practice more.
If you practice more, you get better…