A good number of orchestras request as admision test ,together with the usually Tomasi and different Orchestra except brands like the famous Rimsky Korsakov Scherezade fragment, the perfomance of the Haydn Concert but only with the Bb instrument and not with the Eb trumpet.
Personally, I find more balanced the sound of the Bb in this wondeful piece, a lot more rich, little more darker,warm,and taking in full count all the posibilites of the instrument.A excelent example of that is the version of Timofei Dokshitzer.
In Weidinger times , the choice of the instrument was a a dream; enough was to have this few two or three keys to performe the Concert writed for him by his friend Haydn.His virtuosity had no egal ,to gain the admiration of compositor like the great Joseph Haydn.
What do you think? Bb or Eb for the Haydn?
Daniel
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Schilke S42
Schilke C7
Olds A-10 Ambassador
Olds L-12 Flugelhorn