https://youtu.be/goaRQpVOpLU?si=TYo4HbOosizk6Kst Please watch the video above. For a 34-key kalimba, I recommend a board width of 14 cm or more. Please experiment with your favorite scales; use my experience as a reference. The lower keys are arranged in the same order as a 17-key C major scale. The longer keys on top are the low notes 4567 and C major. The other keys are arranged in B major.