I am not a subscriber to the idea that the musician should only produce music that they know will be popular. It is up to you to "pull off the musical ideas that you are working with". However if you intend to 'plough your own furrow', you should recognise that you may be left, cold and hungry, alone in your field. Those are the harsh realities.
The rock and pop musicians can only continue with their "grandiose" concepts because they take their audience (and consequently their commercial tour sponsors), with them. If they lose that audience they at least accept that they then have to 'cut the cloth'.
Many people try to push the envelope and it is healthy and right that they do so. However it is not acceptable to me, to expect one form of music only, to be supported by right, just because of what you may be attempting to "pull off" in that style.
My government, through many bodies, including the BBC, uses my money to stage concerts and commission works from modern classical composers. These works would most probably not be produced otherwise, as they are not to the current tastes of the general public. Not too sure if they are always to the tastes of the modern musicians playing them either?
Is it right then, that taxpayers money be spent to support such ventures and not others, just because the style of music is considered, somehow more worthy?