In a career spanning five decades, Sequeira Cost has developed his own musical interpretation for an understanding of the German and French schools, acquired through studies with his teacher, Vianna da Motta, Mark Hamburg, Edwin Fischer, Marguerite Long and Jacques Fevrier. He has performed at the greatest halls around the world, including the Salle Gaveau and Salle Pleyel in Paris, the Great Hall of the Tchaikovsky Conservatory in Moscow, Tokyo's Suntori Hall and many others. He recently completed performances of the entire cycle of Beethoven Sonatas at Gulbenkian Hall in Losbon, Portugal.