The Byrds started recording this 1968 album with four members and ended up with two, but the internal turmoil isn’t reflected in the harmonious songs and adventurous spirit. While there’s a golden glow to the nostalgic reverie of “Goin’ Back” and country picking of “You Ain’t Going Nowhere,” the group also push boundaries: “Artificial Energy” soundtracks a drug trip with blaring horns and phased guitars. And on the anti-conscription song “Draft Morning,” tinkling instrumentation and gentle vocals run into careening brass and gunfire sound effects.