A wide variety of video material distributed by the Chaos Computer Club. This feed contains all events from 33c3 as mp3
https://media.ccc.de/c/33c3
The Nibbletronic (33c3)
The NibbleTronic is a MIDI wind controller that features a novel user interface resulting in a unique tonal range. The standard configuration allows to precisely play a bit more than four full octaves including semitones with only one hand. about this event: https://fahrplan.events.ccc.de/congress/2016/Fahrplan/events/7925.html