I dunno why the robot devil specified “solid” gold-- the original song just said gold. You can make violins out of metal, so theoretically a gold one could work.
After the diamond industry goes under maybe debeers’ll start pushing the plasma gold wedding ring
It would be really soft, so if you ever drop it, the sound would be completely wrecked.
and it would be heavy as fuck. if you held it by the neck it would probably bend. and you couldn’t tension the strings.
probably a pretty shitty fiddy
If you rest it on your shoulder and are gentle when tensioning the strings, it can probably work, but don’t go too aggressive on the strings or they’ll probably snap (if gold) or bend the tensioners.
I’m going with “plausible” but totally impractical.
Ever heard of alloys? All things “gold” are actually alloys because pure gold is pretty damn useless for the reason you cited.
Solid gold as opposed to gold plated.