The Society made available previously unpublished compositions from Clarke's estate. "Binnorie", a twelve-minute song based on Celtic folklore, was discovered in 1997, and not premiered until 2001. Over 25 previously unknown works have been published since the establishment of the Society. Several of Clarke's chamber works, including the expansive "Rhapsody" for cello and piano, and "Cortège", her only piano work, were first recorded in 2000 on the Dutton label, using material from the Clarke estate. In 2002, the Society organised and sponsored the world premieres of the 1907 and 1909 violin sonatas.