Careful With That Axe, Eugene stands as a defining example of Pink Floyd's early experimental approach to rock music. Recorded during the mid-1960s and later included on the 1971 compilation Relics, the track showcases the band's mastery of extended instrumental passages and dynamic tension. The composition relies heavily on a repetitive, hypnotic guitar riff that gradually builds in intensity, punctuated by dramatic drum fills and atmospheric sound effects. This structure allowed the group to explore the boundaries between rock and avant-garde performance, creating a piece that feels both spontaneous and meticulously arranged. The song remains a staple of their live repertoire, demonstrating the power of minimalism and the dramatic interplay between silence and noise that characterizes much of their influential discography.