||"Three Solo Pieces" for Alphorn or Natural Horn were written in 2016 by Douglas Hill. The were commissioned and written for Thomas Jostlein, Associate Principal Horn in the St. Louis Symphony Orchestra. The three pieces are demanding ventures based solely on the harmonic series as available on the Alphorn or a valveless natural horn. Though somewhat programmatically linked, these separate solos need not be performed together as a set. Also available as a PDF.