I want to make a xylophone (actually to be later incorporated into a fairground organ-style automaton I am planning); my woodworking skills are fair and I have a good supply of various hardwoods that I can try using.
How likely is it that I’ll end up with some kind of tuneful instrument? What factors affect the qualities of the note that any given bar will produce when struck? (I’m assuming that length is the thing that dictates the actual pitch, but I know that xylophone bars have a concavity in the back - what’s that all about?)