Guthrie’s piece “Castillo Cave” for unaccompanied glissando flute is in the process of being published. More information here: http://www.verlag-neue-musik.de/verlag/product_info.php?info=p3327_Castillo-Cave.html
Guthrie recently won 1st prize in the international Arcady Composition Competition with “Song of the Wind.” It will be performed sometime in October (tentatively the 14th) in Ontario. Exact time and location TBA. See the full announcement at http://arcady.ca/training/composition-competition/composition-competition-winners-2017/.