The mark of a good musician

Random thoughts occurred to me today. I was listening to some talented musicians rendering some complex classical music. What makes the mark of a good musician?

To me:

1. Perseverance :Practice, Practice.
2. Humility: A sharp ear, a willingness to learn from others, and to listen out for your own mistakes.
3. Graciousness: This is especially important if you play in an orchestra or band. In any piece, the instruments/vocalists will have to take turns. Even if you are a soloist.

Does anyone have anything to add?