The metal consists of a high crystallinity structure, so there is a very low inner stress level. This results in a high molecular weight.
E.T.A. Hoffmann (1814)
” … the secret relationship between light and sound is manifest; both light and sound take shape in individual forms, and in this way the solo player and the singer become the euphonic melody ! – … The complete freedom to play, the absolute control over the instrument, so that there is no struggle any more with the mechanical means of expression, but the instrument becomes an immediate, unconstrained organ of mind; that must be the ultimate goal the performing artist strives for; …it has become the artist’s organ in a way that the sound reflect every thing that the mind experienced, without applying any mechanical force, as if by itself.”