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“Piano Concerto No. 4, Op. 56.” Shanghai Concerts, https://shanghaiconcerts.com/en/works/kapustin-piano-concerto-no-4-op-56.
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“Piano Concerto No. 4, Op. 56.” Shanghai Concerts, https://shanghaiconcerts.com/en/works/kapustin-piano-concerto-no-4-op-56.