Bobby Callender

Acid rock is a heavier, louder, and more improvisation-driven branch of psychedelic rock that emerged in the mid-to-late 1960s. It is characterized by extended guitar solos, distorted and feedback-laden textures, modal or drone-based harmony, and a strong emphasis on trance-inducing grooves. The style was closely tied to the counterculture and LSD-fueled happenings of the era, particularly on the U.S. West Coast. Musically, it blends blues-rock’s grit, garage rock’s raw energy, folk-rock’s modal harmonies, and raga-influenced drones, then amplifies everything—volume, duration, and intensity—into hypnotic, often explosive performances.

Raga rock is a 1960s-born fusion of Western rock and Indian classical concepts, characterized by sustained drones, modal (non-chordal) harmony, sitar- or sitar-like guitar timbres, and cyclical rhythmic patterns. The style seeks a hypnotic, transcendental feel by borrowing the raga’s emphasis on a single tonal center and ornamental melodic movement rather than functional chord progressions. Signature features include tambura (tanpura) or tambura-like drones, sitar or sitar-emulating electric guitar lines with bends and slides (meend), tabla-inspired grooves alongside a rock backbeat, and psychedelic studio techniques such as tape loops, reverse guitar, and phasing. Lyrically, songs often reference mysticism, meditation, and inner travel, aligning with 1960s countercultural and psychedelic sensibilities.