I did a very similar thing with an old band of mine called Deluded Buddha's; sporadic rock/metal guitar lines and riffs and sparse rap-style vocals over heavy electronica-influenced drums and bass.
I ran my custom 4-string fretless into a bunch of effects including octave, fuzz, wah, overdrive, 2 envelope filters, phaser, delay, and occasionally an ebow for some really nice synthy tones and no real need for a bottom B.
There's some stuff on YT but this is after me and the previous drummer left and the bass player is using a fretted bass with no effects but it gives you an idea of what can be achieved.
3Leaf Audio Club #71 l Team Trace Elliot #165 l The MXR Official Club #69 | Mooer Club #12 l Fretless Club #882
Last edited by JohnDeereJack : 02-07-2013 at 09:32 AM.