Time for another Robert infodump. Something about Sylas just brings these out in him, I guess.

"This baby is a 20XX reproduction of the classic 1970 Minimoog Model D~. It's an analog synthesizer, meanin' there's no computer brain back here, yer basically just playin' electricity! We don't think about it too much nowadays, but it's some real sci-fi stuff."

"So the basics of it is, on the left y'got yer oscillators, the doodads that make the soundwaves-- this knob here changes the shape, and this'un changes the pitch. There's three a' them, which you can stack on top of each other..."
He played a few middle C's, switching between the waveforms before settling on a square wave, then added the second and third oscillators at different pitches to play a chord with just one key.

"And then all a' these knobs on the right are fer the filter, which cuts out different parts a' the sound, changes the tone and the timbre and the shape of it over time. Here's a lil' filter sweep, low to high..."
With one twist of a knob, the sound shifted from a rumbling bass to a warbling lead to a tinny hiss… and back down as one hand flew across the controls and the other played the keys. The synth drifted from one tone to another hypnotically and Robert noodled out snippets of songs that matched each sound, a rare unbridled grin spreading across his face. He seemed to have forgotten the part where he should've been explaining what he was doing, but-- that's okay, it's music, it's vibes, he needed the break.
So lost did he get in this impromptu jam session, though, that when the sound died down into a quiet but funky little Stevie Wonder bass riff…

"You can get all kinds a' sounds outta this thing, ahahaha! And that's not even getting into the glide or the LFO or the mod wheel or the patch cables..." They waggled their hand, implying the list of features went on indefinitely. "Too bad we don't have a drum machine or something, though. Then we could really get a groove going!"
…Was this still the same guy? There was a little too much energy happening here.