I’m building a sort of hybrid between a cello and a hurdy gurdy, but since the cello is larger than the gurty, I can’t just slap the key box on the bridge and I don’t have or play the cello so I don’t know where all the fingerings would need to be.
Could someone who does play help me with measurements and positions?


Oh that puts this squarely in my wheelhouse! This implies there’s math and measurements I can do to figure this out! I love math!
Great! Yes, maths are the basis for music (eg double or half a frequency is one octave up or down).
I will return with more questions or the finished product!