I'm seeing your reference to my "mallet hat", and I can still dig it.
You're hearing from someone who thought it looked hot when a rock keyboardist
would be standing up with arms outstretched, keyboards left and right, dancing a little.
I didn't get curved, building my new guitar, but I got slanted.
The Rickenbackers I tried in the early seventies had slanted frets,
and even playing upside down I could see how that helped hold down barre chords.
A moose or deer cap, with antlers, is close to a mallet hat.
Did this fellow ever get back with his completed, uh, synthboard?