The age-old question about the dark art of Resampling

[TweakHead]

^well, it morphs to the wave that's selected. so if that's a sine wave, you'd have something similar to a low pass filter going from saw to sine, yes. you can create a perfect sine with a sawtooth if you filter it enough - check with oscilloscope. you do have more filters on the fx section, on distortion - I think the TI keeps it just so that it can reproduce older presets, but it can have its uses.

that experiment would result in a similar sound, but not exactly the same as having a pure sawtooth with a plucky envelope modulating a low pass - sort like the trance standard bass patch. 'cause then you'd have to take into account the characteristics of the filter, that's some steps beyond simply adding and removing harmonics, specially if there's some resonance on it.

yeah, random changes with each note - different from Sample&Hold LFO in that department, even though if you had all your notes snapped to a grid, you could presumably achieve the same effect with it if it was synced to that grid tempo...

the fun thing about the Virus is that this frame of mind tends to come and stay: it seems like some pretty regular subtractive synth at first, but then there's much more to it and it's inspiring to explore all the holes in it.