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	Felix Froschhammer (violin) Paul Mueller-Zuerich - String Trio (1950), op. 46 Felix Froschhammer (violin) Members of the casalQuartett: Markus Fleck, viola; Andreas Fleck, cello; recorded in 2017 (0) Paul Mueller-Zuerich - String Quintet in F Major (1919), op. 2 Felix Froschhammer (violin) casalQuartett: Rachel Späth, 2nd violin; Markus Fleck, viola; Andreas Fleck, cello + Razvan Popovici, 2nd viola; recorded in 2017 (1) Paul Mueller-Zuerich - String Quartet in E flat Major (1921), op. 4 Felix Froschhammer (violin) casalQuartett: Rachel Späth, 2nd violin; Markus Fleck, viola; Andreas Fleck, cello; recorded in 2017 (0)