The Baritone is similar to the Euphonium in terms of shape, pitch and range, except that the larger bore of the Euphonium gives its lower notes a broader and mellower timbre.

上低音号及粗管上低音号的音域相同，唯前者的吹管口径较窄，音色较明亮；而后者音色则较阔及较圆滑。