(disclaimer: bit of an electronics newbie here)
I have a bunch of little magnet ball-bearings that I was playing around with the other day. I formed them into a strand, then fixed both ends leaving a small gap in the middle of the "string" allowing it to vibrate when plucked:
My ultimate goal is to be able to pluck this strand like a string and be able to convert the subtle (I would presume) changes in the magnetic field as the string oscillates into an analogous oscillation in voltage/current which I can supply to an arduino where weird sounds shall be produced.
I also wondered whether I could use inductance here in a way similar but sort of opposite to the inductive phone tap here.