Your needs may dictate a different approach but I recommend setting the key signature as the very first step in entering a song.

I play wind instruments in many keys: A, Bb, C, F, and G. I sold my D/Eb horn. Point is, if you want to stay sane working with transpositions, I recommend always working in concert pitch (C instruments, like guitar, piano, flute or trombone). Then make the switch to a transposed part. For example, buy the Fakebook in C.

However, if you are given a transposed part such as a Bb trumpet part, then you set the transposition in BIAB first. Write back if that’s what you need help with, and give the song and instrument details.

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.