Yes, the "Worst FM Synth Ever[0] is actually a DX7 in disguise. Internally it uses the same sound generation hardware as the DX7. The internal circuitry is diff

Yes, the "Worst FM Synth Ever[0] is actually a DX7 in disguise. Internally it uses the same sound generation hardware as the DX7. The internal circuitry is different overall, but the main sound generation chips, DAC, and output circuitry are identical. This means that by altering the firmware it's possible to turn the DX9 into a DX7, with a few differences. As you've noted, one of them is the non-velocity sensitive keyboard. You can make it respond to velocity, and aftertouch via MIDI, but making the keyboard itself velocity, or aftertouch sensitive isn't possible unfortunately. [0] https://yamahadx9.com/DX9Worst.html https://yamahadx9.com/DX9Worst.html