Why Mason Proffit didn't become one of country-rock's most popular acts in the early 1970s is a mystery that shall never be solved. The Chicago quartet, all decked out like desperadoes, was certainly one of the genre's all-time best. Last Night I Had The Strangest Dream, an epic meditation on peace, freedom and hippie-bred spirituality, is the group's third long-player. The Talbot brothers' harmonies are powerful -- but rich and subtle, too. The rhythm section, meanwhile, never goes slack, even on the ballads, like the title track, a rousing rendition of Ed McCurdy's folk anthem.