FM
The FM block (moderate-mode Rack) — a 2-operator FM voice as ONE card: Keyboard + MIDI In → FM oscillator → ADSR → VCA → low-pass → Speaker, with a macro FACE (Timbre = the FM ratio, Bite = the FM index, Feedback, Attack, Release). FM makes bells, e-pianos, basses and metallic leads a wavetable can't. Drop it, play, turn the macros; open it to reach the operators.