Part of the joy of music is listening to lots of different kinds of music and learning from it. Specifically for me, I like writing songs that move me, and what moves me are beautiful songs on the piano or the guitar and really, really heavy music.
The general fact of surplus value, namely that the workmen does not get the full value of his labours, and that he is taken advantage of by the capitalist, is obvious.
I had some years of definite frustration. Auditioning and not working as much as I would have liked to, or working and being paid a pittance, and sort of scrounging by in New York and sleeping on a chair that folded out into a bed.