Heta Linjen in 2 albums [1971 Med Kisa, Brass & Brudar, and 1971 Won't you Step Inside]

Profile:

Swedish Band led by keyboardist, arranger and composer Berndt Egerbladh (posted here with solo material before and elsewhere).  "A changed and expanded line-up went on to record another album under the name Feta Heta Linjen," oddly enough released the same year.

The music is typical proto-prog psych plus horn rock with vocals in the Scandinavian style, eg Kalevala, Tasavallan Presidentti, (Finnish) Nimbus. Similar in style to the earliest albums from Canadians Dr. Music (posted here long ago).

From the 1971 album Won't You Step Inside, Black Eyes:

From the censored cover album, Mama, which starts off relatively inauspiciously but develops into a nice proggy jam later on:

So your enjoyment of this depends on if you appreciate psych and horn rock in general.