How many of the people watching these motifs played on youtube have not got their imaginations full off the same stuff?

Me for one. I've never seen the game played and have no idea what it feels like to be playing it. (I started playing ocarinas years before any of the Zelda games were developed).

Film scores do the same. One number popular with the bedroom ocarina video crowd is "Concerning Hobbits" from the Lord of the Rings film. I've never seen the film or listened to a recording of the soundtrack, and to me none of these attempts sound anything like a tune. If you hadn't seen the film and only knew the tune from those videos, you'd have no earthly reason to play it.