Gordon, you're a jazz guy. Try exporting a 7alt chord. Since that chord leaves open to the player the choice of altering the fifth and ninth up or down, this is an example where BIAB had to just pick one to export as Music XML. I have over the years reported other odd results.


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; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.