Learned the hands on easy way why I won't ever scrap a piano

I tried to scrap a old piano once, towards the end, actually that's when I finished, I found the Gold coloured metal frame wasn't Brass.... I pretty much just let go of it and walked away.

Electric pianos often have great key contacts in them, Silver brazing rod as a common contact, or Gold plated wires. Platinum spring key contacts. Each model seems to have a different contact setup.
Some keys have little Silver bars spotwelded on them, like relay contacts have, or the Gold plated Silver bars.
I'd be saving them up if I found them.
The 60's-70's keyboard stuff turns up sometimes & often its 'Free for the taking'.
I did get a ' Lesley Speaker' once but haven't found the piano to suit it so far.