I am often asked about methods for treble clef euphonium players to learn bass clef. For various reasons, that is the most common form. Those who originally learned euphonium in bass clef don't seem to require as much help learning treble. Many years ago I yearned to play trumpet. When it was time to start music lessons in school, that was my choice. So my dad found a friend who had a cornet for sale and purchased it for $10. Keeping in mind that this was not during the frontier days ...