This excellent video shows the connection between geometry and music. Some students have a harder time developing numeracy than they do with literacy or musicality. I placed a metronome on my piano and found it to be unnecessary. I suppose numerical timing and beat were already firmly fixed in my body, specifically in my foot.
The narrator has a beautiful British accent, but his "sound wave" sounds like "sign wave". Also, Americans say "math", not "maths", so strange the rest of the world is.
My website educates me as much as it might be educating you. I hope you are enjoying what appears.