Trombone History: Added a new page, Alto in Treatises, that gives quotations from more than 45 treatises, dictionaries, and methods, most of them primary sources. It is arranged chronologically and spans from 1600 through the first quarter of the 20th century, offering a compelling view of the role of the alto trombone in trombone history. The sources, taken as a whole, strongly suggest 1) a relatively common instrument, 2) an instrument pitched in the E-flat orbit (D, E-flat, F), and 3) an instrument closely correlated with alto clef.
Facing image: Alto trombone position chart from Albrechtsberger’s treatise, translated by Novello. Positions are shown in reverse order, 6th to 1st.