Rotary Connection

The release date is contested: late 1967 by the band's Wikipedia article and Apple Music, February 1968 by the album article and MusicBrainz, and a chart date of March 1968 at bsnpubs. Vocals were credited to Aliotta, Riperton, Barnes, Simms, Venegas and Hauff, with Stepney on keyboards and Marshall Chess on theremin, plus Bill Bradley on electronic effects, Pete Cosey and Bobby Christian on guitar, Morris Jennings on drums and Louis Satterfield and Phil Upchurch on bass. It was not radio friendly, and has sitar on "Turn Me On" and "Memory Band". Wikipedia's band article credits Stepney's arrangements, performed with the Chicago Symphony Orchestra, with the dreamlike quality, though the album's personnel list does not show it.

Billboard's review was favorable. Apple Music's essay calls it one of the most unprecedented, influential, and gloriously bonkers records of the late 60s. We found conflicting AllMusic ratings (4 stars on one account of the Wikipedia page, 1 star on another), so we give none.