I was wondering what it would take to make my guitar sound liek a syntesizer.

The main sounds i want to emulate are those high arpegiators and those distorted, organy pads, Ive thought about it and i think id need a slow attack. But im not sure what else.

Some examples of stuff i want to emulate, A lot of muse sounds, umm Dreamtheater - Prophets of war, i do beleive that petrucci plays the bit that sounds like a low synth after the main riff.

Any suggestions?