Thallo, don't kill me! . . . but musiforum exists: it is this place where we are talking! or not?
In my substantial ignorance of modernity and the avant-garde, many of the questions posed by Frank touch upon themes that I have carried within me for some years.
What happens at the end of a concert on an inner level? . . .
I think that, for every person, a resonance occurs - a harmonic - of what that same person gave to the music during the concert. It is clear that everyone can give within the limits of their own sensitivity and experience, but a disposition of 'openness' must exist so that something happens at the end of the concert (even if just something small).
And what are those factors to which the possibilities of a piece being remembered "cling"?
Can I propose 'repetitiveness'?... I mean: the return, even if varied (but with even minimal traits of recognizability) of its elementary motivic formulas.
Translating the discussion: is rhyme (in poetry) not that 'element of repetitiveness' that allows for a foothold for memory? (whether one likes the poetry or not)
Is it not the repetitiveness of twin-lighted columns, pilasters... that establishes that sweet foothold that allows one to remember a building? (whether one likes the building or not)
But when one comes to conceiving music that has a narrative character (and it can be done), here I must confess my weakness. 'Narration' performs something in which, generally, there is no repetition. To me, 'narrative' music seems impassable: it offers me no footholds to enter, little by little, into its movements: it surprises me at every corner, and I must follow it hanging from its lips (just like a narration).
Can I hope that after repeated (and repeated) listenings I will manage to remember it "as a whole"? Perhaps I can hope so. But it takes a lot of... determination.