Here's a question for any trumpeters or jazz composers: I've noticed that a bucket-muted trumpet nicely approximates the sound of a Flugelhorn (as long as the part doesn't require the bucket-muted Trumpeter to bend and weave around pitches like only a Flugelhornist can). I've also noticed that the union rates for Trumpeters who double on Flugelhorn could add up - making me wonder why on earth anyone would ever write a Trumpet/Flug double instead of just writing "to bucket mute." So I ask you: What can the Flugelhorn do for me that the bucket-muted Trumpet can't? Does the Flug really handle so much better in the lower register? (I'm often using it between F3 and C4 to mimic a French Horn.) Can it really play so much louder than the bucket-muted trumpet?
And if I DO go with the Flug, should I delegate it to my second Trumpeter or my first? (Delegating it to the second would preserve the standard ranges, but it would leave my first chair silent for seriously long stretches - even for jazz.)