Stefan Gheorghiu (violin) Valentin Gheorghiu (piano)
Stefan Gheorghiu (violin) Valentin Gheorghiu (piano) Varujan Cozighian (violin 1) George Nicolescu (violin 2) George Popovici (viola) Alphonse Capitanovici (cello)
Stefan Gheorghiu (violin 1) George Nicolescu (violin 2) George Popovici (viola) Radu Aldulescu (cello 1) Vladimir Orlov (cello 2)
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