Quadrant 4 by BILLY COBHAM Overview Tag Appears on 1970 - Spectrum Atlantic Jazz: Fusion Crosswinds Introducing Original Album Series Paradox Rudiments: The Billy Cobham Anthology Spectrum Spectrum (2016 Audio Fidelity) Stratus The Atlantic Years 1973-1978 The Best of Billy Cobham The Billy Cobham Anthology (US Release) Playcount 6 Listeners 6