I have a p-Bone mini which is an alto trombone. It works pretty well.
1. I'd like to use it to play along with the band. But I have to learn how to play it. The positions for an alto are different than a tenor, so its basically learning a new instrument. Should I learn the positions by reading Alto Sax parts? Obviously if I was going to play orchestral music I'd learn the traditional way (alto clef, etc..) but thats not at all how I will use it.
2. What is the theory of letting kids learn on the mini (1st grade or so) and then having them convert to tenor. Same issues (different positions, etc...).