Harmonia Combinatorial - Julio Herrlein
LINK PARA COMPRAR O LIVRO (BRASIL)
https://www.julioherrlein.com/site/loja_harmonia.html
Study and Practice in Composition with Opusmodus (Vol. 2) - Julio Herrlein
Study and Practice in Composition with Opusmodus - (Vol. 2) Julio Herrlein
(Diastema) https://diastemastudiericerche.org/product/julio-herrlein-study-and-practice-in-composition-with-opusmodus-book-2/