The Diapason Press

The General Series includes works from general music history with theoretical interests, such as musical circles (pieces or collections of pieces that progress through all 24 keys), pieces with deviating intervals (such as the harmonic seventh), pieces with original fingerings, and "leftovers" from generally available editions (small portions of a composer’s oeuvre not available in other editions, for whatever reason), et cetera. In addition, the General Series includes pieces taken from the musical history of the Netherlands, mostly from the 17th and 18th centuries.