Pedro Nolasco Jústiz Rodríguez, better known as Peruchín (January 31, 1913 – December 24, 1977), was a Cuban pianist specializing in jazz-influenced Cuban popular music. He was an important figure in the 1950s descarga (jam session) scene in Havana, and one of the most influential Cuban pianists of the 20th century. 　　Between 1944 and 1949 he lived in Panama, where he played in Carlos Boza's band, frequently performing in clubs and radio stations. After returning to Havana he joined Julio Gutiérrez's orchestra at the Teatro Campoamor. He then formed a duo with double bassist Alfredo León before joining the popular Orquesta Riverside. He then arranged for singer Olga Guillot and was the pianist in Benny Moré's Banda Gigante during the year 1953. Playing with the Riverside did not prevent him from performing with various ensembles, including descarga sessions with Julio Gutiérrez (Panart's Cuban Jam Session), Chico O'Farrill, Emilio Peñalver, and Antobal's Cuban All-Stars. He also directed his own ensembles into the 1960s, releasing LPs such as Piano con moña (recorded in March 1958). He eventually left Orquesta Riverside, focusing on his jazz groups. He formed a trio with Alberto Limonta on double bass and Rodolfo Castiñeira on drums and percussion. He occasionally played in the Club Cubano de Jazz with musicians such as bassist Cachao and drummer Walfredo de los Reyes. He also worked with bassist Cachaíto and drummer Tibo Lee.