My almost 11 year-old is the bass player for her school Dixieland combo. It's a great learning experience and she seems to enjoy it too. She hasn't had any trouble keeping solid time on two-count songs (root, rest, fifth, rest), but an up-tempo four-count tune, Jump , Jive, & Wail, is causing her problems. Because she doesn't know how to put a walking line together (yet!) the band director has her doing root, root, fifth, fifth throughout. She starts out strong but by the end she's behind the beat. The problem is that her hand is getting tired. I've had the same problem on songs with a repetitive bass line. We'll bring it up with her teacher, but he's not available until the end of the month. Any suggestions?