In the «CERTAZA.STY» the horns do not acknowledge the B-natural in Ebmaj7#5 chords.

In my arrangement of a song, there is a bar that looks like |Ebmaj7 / Ebmaj7#5 /|, but the horns play (a.o.) Bb through the whole bar.

I have a suspicion that I have heard this in other horn-styles as well. Anyone else with this experience?

Brgds,
Tonnie