sentences:  His work is strongly influenced by traditional Scottish folk music; in particular, he has utilised the heterophonic style of Gaelic psalm-singing, and the piobaireachd form; he varies melodies through ornamentation, as in traditional pibroch, and in their contour; he modifies instruments' tone-colours through alternative fingerings.He has a strong regard for the music of Leoš Janáček.He has also addressed the reconciliation of classical and traditional music with jazz, using improvisational techniques and sometimes combining the two idioms.