The Corpus Microtonale includes music for the performance of which special instruments are needed, usually with more then twelve pitches per octave. Such music normally is called microtonal music. The Tuning and Temperament Library includes facsimile reprints of the most important texts on tuning and temperament from Western music history. Because of the international character of the Diapason Press , all editions have English titles, introductions, and commentaries. Special care is given to the layout and appearance of all the publications of the Diapason Press .
Covers have the colors which serve as background of the respective web pages.
The Diapason Press is a private press, with limited editions.