Tatyana Todorova-viola, Stoyan Bozhkov-cello,
Pavel Rusev-cello, Svetlana Stancheva-violin, Silvet Salieva-double bass
Ivan Penchev, violin and prof. Dimo Dimov, piano
L. van Beethoven - Ten Violin Sonatas
Fr. Schubert - Sonatinas for violin & piano D. 384, D. 385 and D. 408
R. Schumann - Violin Sonatas No. 1, Op. 105 and No. 2, Op. 121
J. Brahms - Three Violin Sonatas Op 78, Op 100 and Op 108
B. Bartok - Contrasts for Clarinet, Violin & Piano (recorded for the "Gold Archive" of BNR)
"Quarto" Trio:
Fr. Schubert - The Piano Trios D. 898, D. 929 and Notturno in E-flat major, D. 897
A. Dvorak - Terzetto for two violins and viola Op. 74
"Quarto" Piano Quartet:
W. A. Mozart - Two Piano Quartets K. 478 and K. 493
Fr. Schubert - Piano Quintet D. 667 "The Trout" and Adagio and Rondo Concertante D. 487
L. v. Beethoven - Three Piano Quartets WoO.36
R. Schumann - Piano Quartet Op. 47 and Piano Quintet Op. 44
J. Brahms - Piano Quartets No.1 Op.25 and No.2 Op.26
G. Mahler - Piano Quartet in A minor
A. Dvorak - Piano Quintet No. 2 in A major, op. 81
A. Rubinstein - Piano Quartet Op. 66
R. Fuchs - Piano Quartet No.2 in B minor, Op.75
Fr. Bridge - Phantasie Piano Quartet (1910)
L. Pipkov - Piano Quartet (1938)
A. Piazzolla - "Four for Tango"
"Quarto" String Quartet:
J. Haydn - String Quartets G Minor "Rider" - Op. 74,
"The Joke" - Op. 33, "The Lark" - Op. 64 and "Kaiser" - Op. 76
L. v. Beethoven - String Quartets op.18
Fr. Schubert - String Quartets "Quartettsatz" D. 103 and "Rosamunde" D. 804
B. Smetana - String Quartet No. 1 in E minor "From My Life"
A. Borodin - String Quartet No.2 in D Major
Jeffrey Ryan -"Slash" String Quartet No.2 (2004)
"Quarto" Ensemble:
W. A. Mozart - Clarinet Quintet in A Major, K. 581
J. Brahms - Clarinet Quintet in B minor, Op. 115
L. v. Beethoven - Sextet in Eb for 2 Horns and Strings
A. Dvorak - String Quintet in G major, Op. 77 (Op. 18)
G. Rossini - String Sonatas
L. Janáček - Suite for Strings
A. Piazzolla - "Oblivion Tango", "Libertango" and others