In total, Dresser composed and published more than 150 songs and also left behind several unpublished compositions.

Research of unpublished and unknown compositions has an important place in Nardi's work.

Fundamental were his researches on the unpublished compositions of the young Schumann.

The blaze killed his daughter Hazel and burnt a cache of manuscripts, both scholarly writings and unpublished compositions.

His papers, which include unpublished compositions and an autobiography, are now held at the National Library of Canada in Ottawa.

Many of his unpublished compositions are listed in This Man and Music.

The Society made available previously unpublished compositions from Clarke's estate.

In addition to the above, several unpublished compositions remain in manuscript awaiting publication.

A huge amount of time has been spent to find the published as well as the unpublished compositions and to examine them all.

Among unpublished compositions, some have two opus numbers.