I'm playing with a band and they've got a chart, originally in F, which they have transposed to Concert E.
I'm looking at the chart transposed for Bb trumpet.
It is a car crash.
The first two chords for me are F#7#9 and B9
But they show in iReal as Gb7#9 and Cb9.

I have looked through the forum and everybody says 'it's complicated' but this chart, and frankly loads of others, are made unnecessarily hard to read on a gig by terrible enharmonic notation when they are transposed, and there doesn't seem to be anything I can do about it!

Is there a solution?

Cheers