Because I have sixty years of being a professional composer, conductor, musician, whatever, and you develop a lot of friendships and you get involved with a lot of sort of long-term commitments and obligations. ↗
So now, thirty years, forty years later, I mean, I could find a whole orchestra of a thousand to put these things together in New York City alone. In those days, if I could scrape up twenty musicians to do this it was something extraordinary. ↗
I listened to the rock music of that time, but as you know and can easily hear: my music of that era had nothing to do with the common music of this era. I was experimenting, I was searching for something new. ↗