Pedagogy

Why do Americans call it a baritone

American school-band tradition absorbed the euphonium under the looser label 'baritone,' partly from earlier smaller-bore instruments and partly from the manufacturing and pedagogy of US school bands. The instrument is usually a euphonium regardless of the name on the case.

I'm a band director — which part do I give my euphonium player

Give a euphonium player the clef they read fluently, not the one you assume. Most US school players read concert bass clef; brass-band-trained players read transposed treble. Good publishers include both — ask first.

Sonata in F major (arr. for euphonium)