rotation, Rotation, rOtation!!! for Clarinet in B♭, Viola and Piano

In October 1930, One day, Alexander Calder who is a initiator of sculptor mobil which alive in space and time had artistic inspiration that hope moving element of point, line, plane which showed in his work when he visited Mondrian’s studio. In 1932, Marcel Duchamp who visited Calder’s studio called it “Mobil”.