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.”
String Quartet No. 13 (2024)–composed “for Tracy.”
String Quartet No. 14 (2025)–composed “for those who rule.”
Harkie Music 