On July 14, 2019, Phish performed at the Alpine Valley Music Theatre, showcasing "Ruby Waves." This concert followed the release of their studio album "Sigma Oasis," which came out on April 24, 2020, indicating that they were in a transitional period between studio and live performances. The band had been known for their unique improvisational style and dedication to live shows, often blending songs and extending jam sessions. "Ruby Waves," a relatively new addition to their repertoire at that time, exemplifies their continued evolution as a band, highlighting their blend of rock, blues, and improvisational jazz influences. The performance is part of Phish's extensive tour, where they often draw on deep catalog entries, reflecting their dedication to live music and the enthusiastic response from a devoted fanbase that has supported them through numerous decades.