I recently heard from a guitar student of choro, Kevin Mulhall, who has been working on the Core Repertoire for Choro Camp 2025. He has done some transcriptions of the bass lines (baixarias) you can hear on the accompaniment videos we have provided on the Choro Camp New England youtube channel.

He has had difficulty uploading them to the forum for some unknown reason, so I offered to upload them on his behalf. Kevin says, "They aren't perfect - they're for my own study. I hope they can be of use to folks." So here's hoping they'll be useful to you! With a little encouragement, I think he'd prepare others, so be sure to leave a comment if you appreciate his work.