On Tue, 12 Dec 2017 03:44:21 -0800 (PST)
Frank McVey wrote:

For sure there is. Just Google "tonewood" Wiki has quite a good
write up. The tuning will very according to the dimensions of each
block. Coarsely tune them by cutting them to size and fine tune by
planing till they sound in tune.

interesting

had not heard of it before

these are cylindrical so i will fine tune by sanding

although flat faces might be more interesting


now if they could be arranged so they play a melody somehow that
would be a plus