Modern US military bands tune and play to tempered scale though.

I dig that sound better than the Just or Pythagorean, which actually must be changed, either by lip and ear or sometimes via the slide too, if the song changes keys out of the four that the Pythagorean tuning is set for at the time.

Arrangers shouldn't write modulations outside of the magic diminished quad where that tuning works. The Tempered Scale may be a tradeoff, but it opens up those horizons, among other things.

Recreating the old band sound is another thing entirely though and has its own merits. I know very few players who are able to switch back and forth successfully without needing a time period to acclimate from one to the other or back.


--Mac