The Association in the context of And Then... Along Comes the Association

Sunshine pop (originally called soft pop and soft rock) is a loosely defined form of pop music that was first associated with early soft rock producers and songwriters based in Los Angeles, California, during the mid- to late 1960s. Its studio-centric sound was primarily rooted in folk rock and easy listening, typically featuring rich harmony vocals and progressive elements, while lyrics combined idyllic imagery with a subtle awareness of societal change, melancholic undertones, and countercultural themes. It was among the dominating music styles heard in television, film, and commercials of the era.

Branching from the nascent California sound, the movement initially straddled multiple styles among many groups who existed briefly while adapting to evolving music trends, resulting in much crossover with bubblegum, folk-pop, garage rock, baroque pop, and psychedelia. Most groups were less successful sound-alikes of acts such as the Mamas & the Papas, led by John Phillips, and the 5th Dimension, whose songs were initially helmed by Jimmy Webb. Curt Boettcher produced numerous key records for the Association, Eternity's Children, his band the Millennium, and with collaborator Gary Usher (Sagittarius). Though the Beach Boys rarely approached the style, Brian Wilson's production of their 1966 album Pet Sounds was a foundational influence on this milieu, as were the arrangements of Burt Bacharach.

Curtis Roy Boettcher (January 7, 1944 – June 14, 1987), sometimes credited as Curt Boetcher or Curt Becher, was an American singer, songwriter, arranger, musician, and record producer from Wisconsin. He was a pivotal figure in what is now termed "sunshine pop", working with the Association, the Millennium, Sagittarius, Paul Revere and the Raiders, Tommy Roe, Bobby Jameson, Elton John, Gene Clark, Emitt Rhodes, Tandyn Almer, the Beach Boys, and others.

The New York Times wrote of Boettcher: "If his life had gone just a bit differently, [he] might have been another Brian Wilson. ... As it stands, Boettcher — a pop-music producer whose heyday was the late '60s — now survives in rock history mostly as a liner-note credit. He could have been, but never was. Yet he enjoys a godlike status among a select group of music fans, for whom obscurity is more enticing than fame."