I'd like for you to consider using a metronome set on a slow tempo to learn the challenging parts. Fix the intonation issues and pay attention to the details of your articulation.
And, you may remember I announced a contest for a chocolate bar. I will award a chocolate bar to the student whose name is drawn from those who write comments here. talk about what makes a good personal practice session for you, share your ideas with other MAYO musicians, and let us know what you thi