After two albums, the band Out Of Focus, founded in Munich in 1969, decided to embark on an ambitious project. The core line-up of the quintet around Remigius Drechsler (guitar, flute, saxophone, vocals), Moran Neumüller (saxophone, vocals), Hennes Hering (organ, piano), Stephen Wisheu (bass) and Klaus Spöri (drums) was expanded to include six additional guest musicians to record a new LP together as a group of eleven. These were: Peter Dechant (g, voc), Ingo Schmid-Neuhaus (sax), Jimmy Polivka (tp), Hermann Breuer (tb), Michael Thatcher (org) and Roman Langhans (perc). In contrast to the two previous albums, which were mainly hard rock and blues, the result is an unconventional fusion of psychedelic Krautrock with current jazz-rock and fusion trends, led by the brass section, especially the saxophone and flute, and occasional English vocals. The double album, recorded and self-produced in July 1972 at Bavaria Studios in Munich, was released in the autumn on Eckart Rahn's legendary Kuckuck label.

However, Rahn decided not to promote their third album due to a lack of commercial prospects and thus abandoned the ambitious band project Out Of Focus. The first edition sold poorly, and the remaining approximately 2,000 LPs were later destroyed. The group parted ways with the label and disbanded a few years later. Four Letter Monday Afternoon is considered one of the best German jazz and brass rock albums and is at the top of the list for collectors of this genre.