“My time with ECM is a lifetime by now,” Terje Rypdal notes, as he embarks upon his fourth decade with the label that has documented his far-reaching achievements as both improviser and composer. For this anthology, Rypdal chose to focus on his groundbreaking electric guitar artistry, heard in settings ranging from symphony orchestra to the enlightened hard rock of the Chasers. “Music must have colours and freedom”, Rypdal once said, and his selection here lacks neither.