After a period of great productivity as a composer, he suffered a heart attack in 1973 and that same year he moved to Italy where he began a series of recordings which would span a period of five years. The music publisher Aldo Pagani, a partner in Curci-Pagani Music, had offered Piazzolla a 15-year contract in Rome to record anything he could write. His famous album "Libertango" was recorded in Milan in May 1974 and later that year he separated from Amelita Baltar and in September recorded the album "Summit (Reunión Cumbre)" with the saxophonist Gerry Mulligan and an Italian orchestra, including jazz musicians such as bassist /arranger Pino Presti and drummer Tullio De Piscopo, in Milan. The album includes the composition "Aire de Buenos Aires" by Mulligan.