Yamaha basically still makes the DX7 in a modernized form in the Reface DX. It just has 4 operators instead of 6, but it can create various waveshapes whereas the DX7 can only create sine waves so it requires more operators to achieve the more complex shapes.
Also, Korg makes the Volca FM, which is actually a clone of the original Yamaha engine and you can actually directly load DX7 patches into it.
>There remains a niche interest in generating instrumental sounds using mathematical modelling, but almost all digital music production these days is based on sampling.
Korg Opsix can also load Dx7 patches, and has all six ops. And many waveforms beyond sine. And other weird shit you can use instead of an oscillator in an operator spot, like a comb filter and other things. Tons of fun.
Also, Korg makes the Volca FM, which is actually a clone of the original Yamaha engine and you can actually directly load DX7 patches into it.
>There remains a niche interest in generating instrumental sounds using mathematical modelling, but almost all digital music production these days is based on sampling.
Yeah...that's just completely untrue.