There are tons of different workflows to create electronic music. You can record sounds (and different instruments) linearly in layers. You can play a single ke

There are tons of different workflows to create electronic music. You can record sounds (and different instruments) linearly in layers. You can play a single keyboard set up in some clever way that allows you to trigger and control multiple virtual instruments at once (often with the help of arpeggiators or something like KARMA). You can use a looper. You can set up a step sequencer that plays notes in a loop while you manipulate both sounds and melody in some way in real-time. You can set up some gear to procedurally trigger sounds, which is what modular racks are often used for (look up "krell patch"). Or you can do several of these things at once, possibly in a group.