501​.​567nm by Stuart Paul Duncan

from The Yasser Collection by Stephen Altoft

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501.567nm As an amateur Astronomer I would often spend hours gazing at distant stars, which can be parsed into their constituent elements via a spectrometer. This spectroscopic analysis reveals differing wavelengths, representing various elements in the star’s compositional make- up. 501.567nm (nanometers) is the spectral wavelength for Helium.
Such a wavelength presents only a single part of the star’s composition; likewise, this piece suggests only a strand of something much larger, as though we’re only focusing intently on a particular view or strand of thought. 501.567nm stands as a single element among a multi-stranded Yasser collection that exemplifies the ‘spectroscopic analysis’ Stephen Altoft’s 19-division trumpet employs on the acoustic domain.


from The Yasser Collection, released May 28, 2019


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Stephen Altoft Germany

Stephen Altoft is dedicated to the creation of new repertoire for the trumpet. As a solo artist, and with percussionist Lee Ferguson as duo Contour, he has given concerts throughout Asia, Europe, the United States and Canada.

He is particularly working on microtonal trumpets and microtonal flugelhorn, with Donald Bousted, as Microtonal Projects.
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