Black Sabbath Cover Band Rehearsals (BSCBR), the Black Sabbath tribute group featuring Brad Truax (Interpol), Mick Barr (Krallice, etc.), Greg Fox (Liturgy), Nick Zinner (Yeah Yeah Yeahs), and Angel Deradoorian (ex-Dirty Projectors, etc.), have released a cover of Black Sabbath’s “Sweet Leaf.” This track is from the band’s new EP “Master Of Rehearsal,” which will…