Duo Anne & Saskia Frijns Next to being sisters, Anne and Saskia regularly play together as a violin-piano duo. They can be heard and seen regularly in and around Utrecht. Their repertoire cosists of some of the greatest compositions for violin and piano, including the violin sonatas by Poulenc and Debussy. Both Anne and Saskia have studied at the Maastricht Academy of Music and Utrecht Conservatory. Anne is currently completing her Master of Music with pianist Henry Kelder.