In tandem with his brother Orestes, the multi-instrumentalist, bassist Israel "Cachao" López wove African rhythms into Cuban music, reshaping the island's classic danzón into the mambo while also launching the descarga, those late-night jam sessions that expanded the reach and texture of Afro-Cuban jazz and pop. Havana welcomed him on September 14, 1918, roughly ten years after Orestes; both emerged from an extended family steeped in music across generations. At eight he entered a children's septet alongside singer Roberto Faz, another enduring name in Cuban music, and by nine he was performing with future icon pianist Ignacio Villa (aka Bola de Nieve) at a neighborhood cinema accompanying silent films. During his teens he took up contrabass in the Orquesta Filarmónica de la Habana, backing visiting conductors Igor Stravinsky, Herbert von Karajan, and Heitor Villa-Lobos, before linking with Orestes in the Orquesta Arcaño y Sus Maravillas in 1937.
Upon his arrival the ensemble was already shifting from its French parlor origins toward a rhythmically charged, African-derived sound that merged syncopated percussion with the popular danzón; together the López brothers supplied more than 3,000 danzónes to the repertoire, chief among them 1938's "Mambo," whose unusually deliberate, weighty groove redefined Cuban music for decades. When Cachao finally departed the Orquesta Arcaño y Sus Maravillas in 1949, mambo had become virtually interchangeable with Cuban music itself. Throughout the next decade he appeared in numerous revues and orchestras, most memorably during a long association with bandleader José Fajardo. Gradually he began convening descargas, spontaneous after-hours gatherings that let musicians explore varied styles and lineups; the jazz-inflected freedom proved compelling enough that in 1957 he started documenting the sessions, issuing the internationally praised Pan Art LP Descargas en Miniature, which spotlighted conguero legend Tata Güines.
The Cuban Revolution of 1959 ended Havana's dominance as a nightlife and music hub, and after departing with the Ernesto Duarte Orchestra for a Spanish tour in 1962, Cachao never returned, entering a lifelong exile. He soon made New York City his base, supporting Tito Rodriguez and later Eddie Palmieri; much of the 1970s found him leading shows at the MGM, Sahara, and Tropicana hotels in Las Vegas before relocating to Miami in 1978. Even as South Florida's Cuban exile community expanded, the 1980s brought relative anonymity, with Cachao often performing at quinceañeras and weddings while Latin music sought to regain its earlier commercial footing.
His trajectory shifted in 1989 after meeting Cuban-born actor Andy Garcia, a longtime admirer of the bassist's work. Garcia organized a Miami tribute concert in summer 1992, underwrote the documentary Cachao: Como Su Ritmo No Hay Dos, and, alongside Miami Sound Machine co-founder Emilio Estefan, Jr., co-produced the acclaimed 1994 comeback album Master Sessions, Vol. 1, which captured a Grammy for Best Tropical Latin Performance. Renewed visibility sparked a creative surge that peaked with Mambo Mass, an ambitious liturgical piece blending Afro-Cuban elements, opera, and classical forms, which debuted at Los Angeles' St. Vincent de Paul Catholic Church in 2000. That year also saw the release of Cuba Linda and worldwide tours with a fifteen-piece orchestra occasionally including Garcia on bongos. Cachao joined fellow Cuban masters Bebo and Patato Valdés on 2003's El Arte del Sabor, securing a second Grammy for Best Traditional Tropical Latin Album, and received another for the 2005 solo outing ¡Ahora Si!. Two Jazz at Lincoln Center concerts with the Afro-Latin Jazz Orchestra honored him in 2006; later that year he directed a mambo all-star ensemble at Carnegie Hall during the JVC Jazz Festival. Kidney failure claimed Cachao at a Coral Gables, FL, hospital on March 22, 2008; he was 89.
