On February 20, 1972, Pink Floyd performed a significant live show at the Rainbow Theatre in London. This concert occurred during a pivotal time in the band's career, shortly after the release of their seminal album "The Dark Side of the Moon," which would officially debut just a year later. At this point, the band was transitioning from experimental rock to more structured, concept-driven music, showcasing their evolving sound. Interestingly, the setlist for the concert included tracks that would later be featured on "The Dark Side of the Moon," reflecting their creative development during this period. The live performance captured the band's innovative use of sound and theatrical elements, reinforcing their reputation as pioneers in the progressive rock genre. This era marked a crucial moment where Pink Floyd began to solidify their status as one of the most influential rock bands of all time.