Contributions de Jonathan Del Mar
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String Quartet in B-flat major op. 130; Große Fuge for string quartet op. 133 [by] Beethoven, Critical commentaryJonathan Del MarBärenreiter-Verlag
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Concerto no. 2 in b-flat major, for pianoforte and orchestra, op. 19 [by] Beethoven, critical commentaryJonathan Del MarBärenreiter-Verlag