Dave Smith Instruments SYNTHESIZERS

>PPG's are wavetable synthesizers in which a series of waves is sweeped in 
>the "oscillator" to create a moving sound even before it hits the filters, 
>amps, lfo's and envelope generators. The evolver has a wave table, but each 
>of the sounds in it are used one at a time by each of the digital 
>oscillators so the sound is not a "swept" sound (although you can play with 
>that by sequencing the waves in the digital oscillators with the sequencer, 
>but it is not a smooth transition between the waves like the ppgs and the 
>Waldorf Wave and Microwaves achieved).

You can actually get complex waveform sweeps from the Evolver- use an LFO to 
crossfade between oscillators 3 and 4 and two sequences to change the 
waveforms, and set the output to mono.  The triangle wave on the LFO isn't 
ideal for this so it's a bit crude.  It's not actually a sweep in terms of 
what the PPG Wave does, it's more like wavesequencing on the Korg M1.  It's 
an interesting sound though, particularly if you use different length 
sequences.