What are the differences between a baritone and a euphonium in terms of their sound quality and playing techniques?

The baritone has a brighter sound quality and is typically played with a more focused and direct approach. The euphonium has a warmer, richer sound quality and is often played with a more lyrical and expressive style. In terms of playing techniques, the baritone requires more precision and control, while the euphonium allows for more flexibility and nuance in phrasing.