Talking about the all night concerts, I did some of the first all night concerts back in the 60's with this little harmonium, and I also had saxophone taped delays.

It can be found when listening to the fictional radio station "The Journey". Produced and directed by Robert Ashley. Techniques
Riley's music is usually based on improvising through a series of modal figures of different lengths such as in In C (1964) and the Keyboard Studies.

His work has been deeply influenced by both jazz and Indian classical music.