Estonian composer Arvo Pärt, creator of contemplative music, photographed in 1990 by influential patron Betty Freeman. Betty Freeman/ECM Records hide caption

itoggle caption Betty Freeman/ECM Records

Keith Jarrett circa 1986. Toshinari Koinuma/Courtesy of the artist hide caption

itoggle caption Toshinari Koinuma/Courtesy of the artist

Bassist Charlie Haden and pianist Keith Jarrett recorded their collaboration, Jasmine, in Jarrett's home studio. Reto Caduff/ECM Records hide caption

itoggle caption Reto Caduff/ECM Records