available on all digital platforms (Spotify, Apple Music, Amazon Music etc)

19.5 by Donald Bousted with duo Contour (2021)

BUY 19.5

Read about 19.5

Time Dreaming by Stephen Altoft (2021)

Time Dreaming Web Page and Programme Notes

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“Stephen Altoft is an explorer who draws maps of musical terrain with his trumpet. The title track, his own composition Rasp, is a slow motion expansion from a breathy hiss to an intense broken buzz … The logic of the progression is as stark as the material itself: a fearless opening statement … announcing to the listener “this is what I work with.” (Max Christie, The Whole Note)

Stephen Altoft’s second solo CD in which he exclusively plays music written for his unique 19-division or 19 note-per-octave trumpet.


UK MicroFest 2 Double CD

A double CD documenting UK MicroFest 2 which was held in the UK in 2007. Music by Gorton; Herriott; Desorgher; Bryan; Salinas; Visser and Fonville.



An astonishing CD from virtuoso German recorder player Andreas Böhlen. Music by Peter Eötvôs, Maki Ishi, Stuart Saunders, Donald Bousted and Wolfram Graf.


A Journey Among Travellers

“a series of tiny masterpieces. Wonders on so modest a scale tend to be in short supply these days.” The Wire

9 Quarter-Tone Pieces by Donald Bousted for two recorders, performed by Kathryn Bennetts and Peter Bowman



The Microtonal Trumpet Study Booklet

Score of 24 Microtonal Studies in 19-, 24- and 48-divisions of the octave by Donald Bousted, fingered and edited by Stephen Altoft.

These studies form the centre piece of an extensive investigation into the microtonal possibilities of the trumpet by trumpeter Stephen Altoft and composer and microtonal theorist Donald Bousted. Recordings of the studies are hosted on Dropbox and are free to access (fill in our contact form on the Microtonal Trumpet page). The scores are only available in this professionally printed booklet.