Izvornik: Classical Duets For All. It's an all-purpose folio that makes classical music fun. Aria. Lost is My Quiet.
Prijevod: Klasični Duets za sve. Trombon, Bariton g.pr.Kr., fagot, Tuba. William Ryden. Bariton rog BC note. Note Bass Clef Instrument. Trombon note.