Aida trumpets for the "Grand March"

An Aida trumpet is a fanfare trumpet especially made for playing the "Grand March" of the opera "Aida," composed by Verdi. Traditionally they are straight with only one valve, with both B-natural pitch and A♭-pitch models being used together.
Yamaha was commissioned by the Vienna Philharmonic Orchestra to produce instruments for performances at the 1980 Salzburg Festival. The commission was a success, although the instruments produced were 1-meter long straight, modified rotary C-pitch trumpets.