Reissue with DSD remastering. Comes with liner notes. Right from the start, a vastly different Weather Report emerges here, one that reflects co-leader Joe Zawinul's developing obsession with the groove. It is the groove that rules this mesmerizing album, leading off with the irresistible 3/4 marathon deceptively tagged as the "Boogie Woogie Waltz" and proceeding through a variety of Latin-grounded hip-shakers. It is a record of discovery for Zawinul, who augments his Rhodes electric piano with a funky wah-wah pedal, unveils the ARP synthesizer as a melodic instrument and sound-effects device, and often coasts along on one chord.