That title refers, of course, to Marshall McLuhan's famous words: "The medium is the message." How true this is for music. The trouble is that the medium has become confused by the media.
Recorded sound is not sound. The difference may be likened to that between fresh and canned vegetables.
Once passed through microphones and amplifiers the thing itself is no longer recognizable.
I do not doubt in the slightest that being at home in the medium of sound with all its rich complexities releases the inhibitions that block good coordination at the instrument.