[Fons Adriaensen]
If music is about 'communicating' anything, it
should probably
(IMHO) first communicate itself. There's nothing more boring
than an artist trying to communicate his or her very personal
feelings, be they sorrow or anger. The very least you need is
a wider context that is relevant to others, and the music (or
any form of art) that will most strongly communicate anything
but itself will be the one that in which the creator himself
disappears completely.
To quote Miles Davis, "I think people want to hear music and think
what they want to think."
(I think this is especially true for live performances. I -- like
probably most of us -- hold dear a couple of recordings exactly
because they so strongly express a particular emotion or state of
mind.)
Cheers,
Tim