Columbia subject headings:
Bass-baritones--Biography.
Bass-baritones--Interviews.
Rossini, Gioacchino, 1792-1868. Operas.
Singing--History.
Singing--Methods.
Harvard subject headings:
Bass-baritones--Biography.
Bass-baritones--Interviews.
Rossini, Gioacchino, 1792-1868. Operas
Singing--History
Singing--Methods
Princeton subject headings:
Bass-baritones--Biography.
Bass-baritones--Interviews.
Rossini, Gioacchino, 1792-1868. Operas.
Singing--History.
Singing--Methods.