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	Paul Mueller-Zuerich (1898–1993) String Trio, op. 46 (1950) Felix Froschhammer (violin) Members of the casalQuartett: Markus Fleck, viola; Andreas Fleck, cello; recorded in 2017 (0) String Quintet in F Major, op. 2 (1919) Felix Froschhammer (violin) casalQuartett: Rachel Späth, 2nd violin; Markus Fleck, viola; Andreas Fleck, cello + Razvan Popovici, 2nd viola; recorded in 2017 (1) String Quartet in E flat Major, op. 4 (1921) Felix Froschhammer (violin) casalQuartett: Rachel Späth, 2nd violin; Markus Fleck, viola; Andreas Fleck, cello; recorded in 2017 (0)