how would one achieve a fairly long amount of sustain. The best example I can think of off the top of my head would be hitting a big chord, distorted and having it hold for a long while, almost like an infinite drone if that makes sense?
If it's ok for the the tone to be fuzzy or distorted then Big Muff style fuzzes will add a lot of sustain. They will add a lot more than a compressor.
+1
My supercollider can sustain my bass to the point of feedback if I crack it up. If you like distortion, it is probably the way to go here. Even a low gain OD will add to your sustain with trhe right settings.
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