Tine Piano

Curve: flux Φ through the coil vs tine-tip height Y. Band: how far this strike swings the tip. Output ∝ −dΦ/dt, shown below for a few cycles. A wide swing across the bump makes harmonics.

The bell of the attack is the tine's overtone near 8 × f₁, and it fades first; the harmonics that sustain come from the pickup bending the fundamental, so they fade together with it.