Check out this dubstep song, via muzik4machines, made solely from the noises from a dialup modem. Skip to 11:57 if you want to skip “the making of”, and get right to the song.

I have heard that dubstep sounds like a dialup modem, so I decided to test if the modem could sound like dubstep. Every sound is from the opening handshake – there is no synth and no samples used, even the drums are all based on parts of the modem sound. The bass is pretty clearly shown in the intro from modem buzz to brostep wobble.