David Philip Hefti: String Quartets Nos. 1 - 4

Hefti, D P: Ph(r)asen - String Quartet No. 1

Hefti, D P: Guggisberg-Variationen - String Quartet No. 2

Hefti, D P: Mobile - String Quartet No. 3

Hefti, D P: con fuoco - String Quartet No. 4