By 1927, the membership of the ensemble had settled: Kolisch played first violin, Felix Khuner played second violin, Eugene Lehner played viola and Benar Heifetz played cello; this group became known as the Kolisch Quartet.
By 1927, the ensemble's structure was established: Kolisch held the first violin position, Felix Khuner played second violin, Eugene Lehner took on the viola role, and Benar Heifetz performed the cello part; this group became known as the Kolisch Quartet.