A FREE pdf book (covering a full description of the microtonal valve mechanisms) and a number of free resources (including fingering charts in 19-, 24- and 48-div) are available on request (fill out the contact form below).
Microtonal trumpets date back to the early twentieth century and there are surviving examples in the museums in Odessa and Prague.
Since 1998, the project has expanded exponentially both in the development of ideas, modified instruments and in the creation of new music.
Stephen and Donald have presented the project at:
The University of Surrey, The Royal Academy of Music, Trinity College of Music, York University, The University of Bristol, Brunel University, The University of Huddersfield, The University of Leeds, Keele University, The University of Aberdeen, UK MicroFest’s 1-4 (all UK), Staatliche Hochschule für Musik, Freiburg, (Germany), Fondation Royaumont (France), Hochschule für Kunst Bern (Switzerland), Kunsthochschule für Medien, Cologne (Germany), Hochschule für Musik und Theater, Hamburg (Germany) EUROMicroFest 2013 and Napier University, Scotland.
The Microtonal Trumpet, to date, has been concerned with playing quarter-tones (24-div) and eighth-tones (48-div) on a standard 3-valve trumpet and, using a specially constructed conversion kit, quarter-tone and 19 equal divisions of the octave (19-div).
The project, as documented, is based around 24 microtonal studies by Donald Bousted. See the publications page for details.
The Yasser Collection CD
In order to explore the 19-div tuning on the trumpet, Stephen commissioned 19 solo pieces from 17 international composers. The resulting CD, called “The Yasser Collection” can be heard on Bandcamp and is also part of our Dropbox resources.
Stephen presents 11 recently written pieces in 19-division tuning. Like the Yasser Collection before it, these pieces are diverse in orientation and international in outlook. The Liner notes are here: RASP CD Programme Notes. Order the CD from our Publications page or buy on Bandcamp.