The late Chicago saxophonist can make a credible claim to being one of the great bridges between the mainstream and avant-garde. The highly danceable, groove-based soul jazz strain of his work, so gloriously epitomised by ‘Listen Here’, was often offset by daring forays into atonality and explorations of ‘pure sound’, especially from the late 1960s onwards, and this remarkable album is a great example of the duality. It is constantly shifting between highly melodic, irresistibly catchy themes that have the deep soulfulness of Stax heroes such as Booker T. Jones and Otis Redding, and abstract, outward bound arrangements that owe an equal debt to Eric Dolphy and John Coltrane. Harris was among the first saxophonists to experiment with electrified horns and ‘echoplex’ devices and the deployment of this kit on the title track in particular takes him into the seductively spooky shadowlands of proto-dub, in which the gurgling reverb of his reed and Monk Montgomery's bass guitar become positively ‘Black Ark’ in nature. Even for diehard EH fans well acquainted with his voluminous discography this is an all too overlooked gem deserving of greater recognition.