Costas played with the choir during its Rachmaninov Vespers concert in June 2007.

Costas is based in London and works internationally as a concert and silent film pianist, and as a composer and arranger for film, the stage and the concert hall. He studied as a solo concert pianist at the Royal Academy of Music and at the Juilliard School, and he has given many solo and chamber performances in this country as well as in Austria, Italy, America, Australia and New Zealand. He has recorded repertoire for BBC Radio, as well as the piano solo work, Cross hands, for a CD of music by British composer Nicholas Sackman, released on the Metier label.

Costas regularly provides live improvisations to silent films at the National Film Theatre and he has also accompanied films in New York, Warsaw and northern Italy. Recently, he provided a piano improvisation to sections of the Budget Speech, aired on BBC Radio 4.

For more information about Costas please visit his website.