Update! Added sharp notes, cleaned up formatting, added light grey bars to visualize cello first finger positions.
To use these papercraft calculators, print them out and cut out the notches where indicated. By moving the bottom sheet left or right, a different key is selected, and the proper notes in the scale are displayed. Each uses a color code to indicate the root note and intervals from the root note to make chords or improvisation easier. The calculator also shows the physical location of each note and, for the cello, standard finger positions.
I finally got around to making the cello scale calculator because I’m starting to play the cello after a quarter-long hiatus. Hopefully, the calculator will make it a little bit easier to learn new pieces.
What do you think? Would you ever need something like this? Let me know if you want this for any other instrument. I might go down to the library and get my copy laminated if I find myself using it often.