Grails - Black Tar Prophecies 4, 5, & 62013 US Etched 2LP Gatefold Following the release of their most acclaimed album of their decade long career, Deep Politics (2011), Grails revisited Black Tar Prophecies, their ever expanding, enigmatic tapestry of eclectic experiments released in scarce limited editions that often disappear before most fans discover their existence. Black Tar Prophecies Vol's 4, 5 & 6 collects the last three volumes in the Black Tar series, originally released as a