A few more observations after working with the Pro version (one month subscription).

It does not appear to recognize #11, a chord used extensively in Brazilian music and jazz. However, it offers a substitute. Example: for G13#11 it thinks it is a DmMaj13/G

In simpler chords, instead of #11, it prefers b5. That's OK. Same note enharmonically, lower register.

It sometimes adds 11 when I think it's a minor 9 chord.

It does not seem to have 7alt as a choice, but that's OK as this chord has multiple meanings.

It sometimes adds 9 when I think it's a major 7 chord.

But overall, this app still does the best job of anything I have used to transcribe jazz.


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.