From November 1955 to November 1959, Miles Davis recorded 12 brilliant albums in a row:MilesCookinRelaxinWorkinSteaminRound About MidnightMiles AheadMilestonesPorgy and BessKind of BlueSketches of SpainI doubt there are many periods, in any art form, that can compare with this.(Spun off from an FB comment stream with GEL.)