I'm posting this here because I know there a lot of horn players here on TB. My nephew is in the school band. It's his second year. In the first year he switched from trumpet to baritone horn (euphonium). His mother told me last week that the band director is switching him from reading treble clef to bass clef. I said "Treble clef. That's crazy! He should have always been reading bass clef!" Well, she told the band director what I said. He told her that baritone players can go both ways and that I don't know what I'm talking about. I've done a little research, and apparently I was partially wrong. But, how wrong? It looks like you can play baritone as a Bb instrument and read treble clef and the fingering is like a trumpet. Or, you can play it as a concert pitched instrument and read bass clef and the fingering is like a tuba. Switching back and forth seems very difficult. I think he should have learned it on bass clef in the beginning. And all the music I have seen is written in bass clef. Any comments?