Clarke composed no large scale works such as symphonies. Her total output of compositions comprises 52 songs, 11 choral works, 21 chamber pieces, the Piano Trio, and the Viola Sonata. Her work was all but forgotten for a long period of time, but interest in it was revived in 1976 following a radio broadcast in celebration of her ninetieth birthday. Over half of Clarke's compositions remain unpublished and in the personal possession of her heirs, along with most of her writings. However, in the early 2000s more of her works were printed and recorded. Examples of recent publications include two string quartets and "Morpheus", published in 2002.