Contains Heller's finest etudes, including: Opus 45, Nos. 2, 7, 10, 16, and 22 * Opus 46, Nos. 2, 7, 8, and 11 * Opus 47, Nos. 3, 13, and 15 * Opus 138, No. 9 * Opus 125, No. 8.
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Contains Heller's finest etudes, including: Opus 45, Nos. 2, 7, 10, 16, and 22 * Opus 46, Nos. 2, 7, 8, and 11 * Opus 47, Nos. 3, 13, and 15 * Opus 138, No. 9 * Opus 125, No. 8.
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