A jazz pianist and I had this discussion tonight: when is it just too much, or too little? My friend is a gifted artist; he can handle dissonances well, by ear.
I always wonder why jazz and classical music have mistrusted one another in the concert hall. The conservatories are worse: their theory tracks are completely different.
But this not about that difference. This is about interest. When does it get boring? Anything, really. Any music.
For me, when I am hopelessly lost in any work - I mean nothing to hang on to - no harmony, no counterpoint, no rhythm (and of course no melody, since that is nearly banished from the major-league composers' possibilties). I get angry when the music stays angry for over 10 minutes.
I tire of gongs and glocks and snaps of violin strings, and lately rhythmic shouting by players. All the sounds are identified, and color alone does not usually work in the long-run (there are exceptions).
I really prefer to ask the question rather than answer it. Every human being has a right to answer this question honestly. No opinion is wrong or unlearned.
Many people chose to never answer the question. Our culture encourages us to pay out a lot of money, sometimes over $100 per ticket to hear what is programmed. There is no way to please 2,000 or 5,000 people at one time. Even 200 people is a tough audience for new music. Not answering is like staying home and not voting. Others will just choose for us.
I know that I am always hopeful, and almost always disappointed at the symphonic "premiere." This is a situation that I hope changes soon. Classical music may need it's own Spring Revolution. I wonder what it might sound like?