sentences:  He also plays often with the pianist from Legazpi, Marta Zabaleta.Spanish composers Gabriel Erkoreka, Luis de Pablo, Antón García Abril and Carmelo Bernaola have written works premiered by Polo, who was described as "outstanding" by Carlos Prieto.Polo plays on a Francesco Rugieri violoncello (Cremona 1689) bought in collaboration with Banesto.