What has become blatantly obvious in these discussions of what constitutes an "interesting video" is that we are all making theremin videos that please ourselves. With all artistic creations, personal tastes vary tremendously and what may be a touching and magical theremin moment for one person, may well be torture for somebody else.
I am no longer surprised when I see a theremin video where the playing is waaay off key and the thereminist does not know the notes of the piece being played, and then read the comments of viewers who express how deeply moved they have been by the magnificence of the performance.
When it comes to video making, as with all aspects of theremin playing, we are not going to agree on anything (with the possible exception of the removal of the kitty litter box).
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That's why I think you should make a nice video along with your theremin play ;-)
Par example my first Transcendent Theremin Jam video ... Although I edited the background music BEFORE I did the theremin solo over it, the theremin solo of this video was an INSTANT playing (EVEN without warming up my theremin) ... And yeah, there ARE a few pieces out of tone in this video, but nevertheless I played this one instantly (so, without any previous exercising, as you simply can't do this with transcendent playing!) ;-)
http://youtu.be/nfDZnbyqWJE
... There's only 1 more video which is in this kinda way, and that was the theremin jam together with Neonwind & Linda because we never exercised therefore ;-)
But yes ... I actually DO agree with you when you talk about playing covers ... You should try to exercise them, which I mostly do ;-)
I personally quite dislike those videos where people try to play a song which goes out of tone, but I always and also try to look from the player's perspective ITSELF, par example like, how long does this person play theremin? And of course, we should expect more from persons who play for a longer time, but some people just don't play that well when cameras are running (I guess) than when they are not running (I sometimes have this problem, especially in the beginning but it's getting better through time I have to say ;-) ) ...
Love,
Marielle :D