By August 31, 1968, when Pink Floyd performed "Astronomy Domine" at the Kastival '68 Festival in Belgium, the band was experiencing a burgeoning phase in their career. They had released their debut album, "The Piper at the Gates of Dawn," in 1967, which showcased their innovative approach to psychedelic rock. At this time, the group was in the midst of transitioning from the experimental psychedelic sound of their early work to a more progressive style that would define their later albums. The live performance at Kastival is noteworthy not only for the song choice, which was a signature piece from their debut, but also for its capture of the band's raw energy and avant-garde artistry during their formative years. Additionally, this performance was part of a broader media engagement, as it was filmed for television, highlighting the growing demand for their music and the visual representation of their evolving identity in the rock scene.