My wife´s old netbook ist pretty slow. Actually it´s totally annoying, so she got a new desktop yesterday. Aynways, I recently discovered that her old lame netbook is an awesome glitch machine!
Since I already installed Reaper there some time ago (She plays the Uke and also plays the recorders - So Reaper can just provide the tempo, but it´s usefull in many ways. It works so perfectly btw on this so terribly slow computer with Asio4All) and sometimes youtube videos totally glitch out when there are tasks going on in the backgound like updates for example - I decided to make my own glitches by using several instances of different browsers, many tabs, doing stuff in Gimp etc. - You get the idea.
It worked so perfectly! Just amazing. Anything can be used as a sound source of course! Videos, online TV, games, or I can prepare my own stuff in Reaper etc.
If you have a TV with an antenna of some sort, just use a cable from the tv´s audio out - Digital tv with poor signal tends to glitch when switching channels. I´m sure there´s lots of fun to be had with those old antennas as well.
It´s always easy with percussive sounds to use a gate effect set to only let some of the transient material pass. Depending on the settings and the audio source this can provide some pretty good stuff. Any DAW should have some drum loops or similar stuff, of course you can use your own audio, too. Your DAW´s "Slice to midi" function can easily transform the resampled audio into a drum kit that can be triggered with midi notes.
Using a hardware sequencer or a software drum synth with inbuilt sequencer can give pretty cool results. "Midi effects" can be used for fast retriggering drum rolls etc.
Arpeggiators can be used with very fast rates to get pseudo granular effects. Map "On/Off" and "Rate" to midi controller.
Sorry if someone else already posted similar stuff, I´m in a hurry.
Gotta read the whole thread laterz.