Dave Smith Instruments SYNTHESIZERS

Sorry to disappoint you, but if you want to program 303 sliding 
basslines, you'll need to have an external sequencer.  Each 
oscillator has glide, but it only is responsive to incoming Midi 
notes.

With that out of the way, the closest thing to a 303 bassline would 
be to assign Sequence 1 to OAF (Oscillator All Frequency), then use 
rows 1 & 2 in the Sequencer to program note values (you'll enter 
numbers, which will be the number of semitones above your base 
pitch... 12 per octave).  Try also putting some steps to the OFF 
position (can only be done in Sequence 1), then going back out of the 
sequencer to play with the envelopes.    

The Evolver can be a little intense at first, because of all the 
options.   One thing I found to be really helpful is dialing in an 
existing patch, then looking at different settings and where the 
sequences were routed to.

But most of all, have fun!