1 Wave
A voice on the SCC does one thing: it walks a 32-byte signed table, one sample at a time, around and around forever. That table is the instrument. There is no waveform selector, because there is nothing to select from.
Drag across the editor to draw. Thirty-two samples can carry harmonics 1 to 16 and not one more, so the bars beside it are not an approximation of the spectrum — they are the complete spectrum, all of it, updating as your finger moves.
Why sixteen?
A cycle sampled 32 times can represent at most 16 full oscillations within it — one every two samples. That is the Nyquist limit, met here in its most physical form: try to draw a 17th harmonic and there is nowhere to put it. Everything above 16 folds back down into the bars you can already see, which is why a hand-drawn spiky table sounds buzzier than it looks.