Greatbass recorder

Update, 2024-05-13: Mouthpiece added (v3) for great bass bore v4.

THIS IS A WORK IN PROGRESS. The instrument as published is not ready for performance. I'll remove this once the posted files result in a printable, playable, and in-tune instrument.

This is my printable take on the baroque greatbass recorder. The low register recorders designed by Joachim Petzold in the 1970's were a strong inspiration. It seems that recorders may have been relegated to period music or institutional education by that time. And low register recorders had always been rare because they were expensive to produce and had a very limited pool of users. Paetzold's plywood recorders defied conventions and assumptions about woodwind instrument design, materials, and their associated potential impacts on sound. The result was louder, deeper, and more economical instruments than had been previously available to recorder players. And these new instruments with their new capabilities, new aesthetic, an