Tim Lautzenheiser, John Higgins, Tom C. Rhodes, Donald Bierschenk, Paul Lavender
Essential Technique for Band 3 – Baritone B.C.
with EEi
Intermediate to Advanced Studies
(Also known as Essential Elements Book 3)
Dla: Klasa dęta [róg barytonowy (klucz basowy)]
Głos pojedynczy (materiały do nauki), online media