Is anyone here on the forum knowledgeable about late 19th century trombone usage?
Late Romantic composers such as Dvorak and Elgar often wrote for three trombones, of which two were notated in Alto Clef and the other one in Bass Clef. Amateur Orchestras in the US tend to perform these on two tenor trombones for the two alto-clef parts, and one F-attachment instrument for the bass trombone part.
I have two questions: 1. Would professional orchestras in the late 1800s have done the same thing, or would they have performed the two upper trombone parts on actual Alto Trombones?, and 2. Do most modern day tenor trombonists also read Alto Clef fluently?
Thanks for any feedback you can give. (I used to be a trombonist myself, about 60 years ago, but not a good one, and with no knowledge of classical instrumentation practices.)