The following string quartets are available from Harkie Music unless otherwise indicated:
String Quartet No. 1 (1990)–commissioned for the Oxford String Quartet; published by Seesaw/Subito Music).
String Quartet No. 2 (1992)–composed for the Oxford String Quartet; published by Seesaw/Subito Music).
String Quartet No. 3 (1995)–composed for the Oxford String Quartet; published by Seesaw/Subito Music).
String Quartet No. 4 (1998)–composed for the Oxford String Quartet; published by Seesaw/Subito Music).
String Quartet No. 5 “Motherless Child” (2014)–composed for the Marian Anderson String Quartet.
String Quartet No. 6 (2016)–composed “for the fearless.”
String Quartet No. 7 (2019)–composed “for the greatest.”
String Quartet No. 8 (2020)–composed “for Mary.”
String Quartet No. 9 (2021)–composed “for the young.”
Quartet Liturgia (2022)–composed “for the faithful;” published by Ars Nova Music Press.
String Quartet No. 11 “Omega” (2022)–composed for the Telegraph Quartet.
String Quartet No. 12 (2023)–composed “for the youth.”
Harkie Music 