This seems to be a very 'Lite' presentation, with no inside information or insights for musician, technician or engineer.
I guess if you are a novice entering the field and needing a crash course (like a salesman or Year 1 student) without troubling your intellect with how stuff works or how it can be used, then this would be a decent overview.
You might learn more from studying a few music instrument catalogs and datasheets.
The Other Tesla David Blaza5 comments I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...