He studied piano with Alessandro Commellato, Andrzej Tatarski, Pier Narciso Masi and Contemporary Music with Maria Grazia Bellocchio, Emanuele Arciuli.

In 2015-2016, he was the pianist of Ensemble Giorgio Bernasconi (Accademia Teatro alla Scala), with which he’s still collaborating.

Winner of national and international competitions, Gaston Polle Ansaldi has performed in important venues such as Teatro alla Scala (Ridotto dei palchi “A. Toscanini”), Accademia Filarmonica Romana, Academia Chilena de Bellas Artes in Santiago del Cile, Circolo della Stampa of Torino, Festival Aperto of Reggio Emilia, Mantova Chamber Music Festival, Stagione Rondò - Divertimento Ensemble, Festival Trieste Prima, Fondazione William Walton, Gaudete – Festival Internazionale di Musica Antica of Varallo Sesia, Cremona Mondo Musica.

As an orchestral musician he also collaborated with Orchestra dell’Accademia del Teatro alla Scala, Orchestra del Teatro Petruzzelli di Bari, Orchestra Sinfonica Siciliana; he was directed by David Coleman, Dennis Russell Davies, Marco Angius, Tito Ceccherini, Renato Rivolta, Antonio Ballista, Carlo Boccadoro.

Gaston Polle Ansaldi made recordings for Phoenix Classics, La Bottega Discantica and Radio 3.