PeterBale said:
I have a number of recordings in my collection where additional instruments have been used in particular pieces, especially such as a piccolo trumpet, a second flugel, a trumpet soloist and extra trombones - and remember that SA music often divides its trombone parts as we are not affected by contesting limits. There are also bands who produce a trombone quartet by shifting across another player, often from baritone or euphonium.
As to whether such things would ever become common-place I still think that is less likely, once commercial considerations are taken into account. It is one thing for a particular Musical Director, especially someone who arranges music themselves, to decide to feature a particular instrument, but quite another matter to request that in an arrangement that is going on open sale. Unless there is going to be substantial cueing and alternatives it may not appeal to the majority of bands, which would reduce its attraction, and thus the number of copies sold. Equally, the mere existence of other versions can detract from the very effect originally intended.
But.... it works for wind bands (see my first post regarding different brass and woodwind instrumentation requirements for each piece), why not, given time, brass bands? Whilst there are some bands who struggle for numbers, granted, there are bands who have to turn players away because they've got too many, (as someone who is involved in two brass bands where both problems are prevalent, I do speak from experience!), well if the band repertoire eventually opened up to occasionally include extra trombone parts/cornet/sop/flugel parts (I mean, the Warner Classics arrangements - like Frankly Speaking and Cartoon Classics are already catering for this to a degree - extra parts for bass clef euph/trombones/basses) maybe this wouldn't be so much of a problem.
Note, just to repeat, on this particular thread, I am not making any reference to include non-band (i.e. trumpet/French horn) instruments, this is simply to add a bit of variety by either adding extra parts for existing 'specialist' instruments like sop, flugel as well as extra trombones, to cater for the 'bigger' bands, or to just add variety of tone colour by having existing parts (i.e. front row) occasionally 'doubling' on say sop, or flugel.
I do love these discussions! ;-) I've been very intrigued by the responses thus far. As ever, with the informed bunch that tMP-ers are, good points made both for and against!