I have an experimental monster case with effects modules, complex oscillator and filters and mixer and a good sequencer and utilities. That is used for creating weird soundscapes. For performance oriented stuff like dance music, I have two cases one a 4u and another 7u Intellijel case with Eloquencer sequencer, Queen of Pentacles, mixer and utilities in the 4u case that works great live. My other portable case also has an Eloquencer sequencer, mixers, utilities, and several drum modules and an oscillator/filter combo that work well. I like using the same sequencer as it has good format for drums and music live in that I can view 8 tracks at same time and create song mode and patch presets for recall later.