Final answer:
The change from 1950s rock 'n' roll to 1960s psychedelia was due to cultural and social transformations, and psychedelia's influence can be seen in the era's music through innovative studio effects, electronic instruments, and themes of consciousness expansion.
Step-by-step explanation:
The shift from rock 'n' roll music focused on teenage life and dancing in the 1950s to a more psychedelic point of view in the 1960s was influenced by numerous factors. Societal changes brought on by the civil rights movement and a more pronounced generational divide spurred the desire for a new form of musical expression. This transformation was rooted in a call for social, cultural, and political changes, and the music of the 1960s began to reflect the emerging psychedelic culture.
Psychedelia in music was characterized not just by its lyrical content, which often addressed themes of peace, love, and expanded consciousness, but also by its distinct sonic qualities. The use of innovative studio effects, electronic instruments, and unconventional song structures were designed to evoke or enhance altered states of consciousness, mirroring the influence of psychedelic drugs popular at the time. From The Beatles' evolving sound to Jimi Hendrix's guitar solos, the impact of psychedelia was profound, influencing the aesthetics and attitudes of the era's youth.