To commemorate the composer's 70th birthday, Kronos commissioned Riley to write the six-part suite The Cusp of Magic for themselves and pipa player Wu Man. (The pipa is a Chinese stringed instrument that sounds like a higher-pitched banjo.) Interweaving aspects of Chinese folk music, Native American chants, European classical tradition, minimalism, and sounds of nature, Cusp is a wide-ranging work, alternately contemplative and celebratory, but always rhythmic. "Part IV: Royal Wedding" and "Part VI: Prayer Circle" contrast cyclic, regal baroque motifs with crackling exclamations from the pipa, evoking medieval and Appalachian themes. Without being new-age-drippy, The Cusp of Magic represents a glorious clash of cultures, focusing on commonalities rather than disparities. A true gem.