computer keys: A W S E D F T G Y H U J K O L P ; play notes · Z / X shift octave down/up · click a piano key higher/lower for softer/harder velocity
Voice data is the real Yamaha DX7 ROM1A factory bank (algorithms, envelopes, operator ratios, keyboard scaling). The FM engine reproduces the DX7's 32 algorithm signal-routing graphs and 4-stage rate/level envelopes; envelope timing and keyboard/velocity scaling curves are close approximations rather than a cycle-accurate reproduction of the original hardware.