Terry Riley’s name will always be associated with his breakthrough work In C, but his influence on modern music has stretched far beyond minimalism. Both of the works on this recording reveal Riley’s spirit of exploration and his close collaboration with remarkable musicians. Commissioned by the Nashville Symphony, The Palmian Chord Ryddle is a kind of musical autobiography in which electric violin pioneer Tracy Silverman’s “one-man string quartet” sets the pace for the sparse, translucent orchestration. At the Royal Majestic is another recent example of Riley’s work with a symphony orchestra and a virtuosic soloist, in this case organist Todd Wilson. Its title refers to “the mighty Wurlitzer housed in grand movie palaces,” and the music draws on a wide variety of genres including gospel, ragtime, Baroque chorales, and boogie.