Psychedelic Rock: A musical genre that emerged in the mid-60s as part of psychedelic culture, characterized by new songwriting styles and sounds including extended instrumental solos.
Counterculture: A subculture whose values and norms differ substantially from those of mainstream society, often in opposition to mainstream cultural mores. The counterculture movement in the 1960s was marked by a rejection of conventional social norms.
Hippie Movement: A youth movement that began in the United States during the early 1960s and spread around the world. This movement was associated with anti-establishment ideologies, which included protest against war (especially Vietnam War), promoting peace and love.