Under the moniker Oppet Caprice presents a relatively unexplored period of Swedish creative and experimental music from the 1960s and the 1970s. In Sweden the late 1960s and the early 1970s was a very rich period musically, with everything from free jazz to what later will be called world music. Despite a lot of live performances, the music was rarely released on record. Some were recorded and luckily survived, and it is these archive recordings that Caprice in collaboration with musician and series curator Mats Gustafsson and Roger Bergner, archivist at the Center for Swedish Folk Music and Jazz Research, have explored to present long time unheard music.

Oppet Tre presents the Roland Keijser Kvartett, which was active a short period in the end of the 60s. The quartet would after a few years reform to the more well-known band Arbete och Fritid. During the same period Roland Keijser played in one other well-known band, Gunder Hagg, who later became Bla taget. Oppet Tre describes an interesting breaking point between the jazz music of the day and what would become. The Roland Keijser Quartet exhibits in a freshly openness to different influences, for instance American free jazz a la Albert Ayler and Don Cherry, but even influences from minimal composers, and in some moments you can hear little streaks of classic Dixiland jazz.