1.
楽譜 |
von Richard Wagner ; foreword by Max Hochkofler
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2.
図書 |
translated into English, with a pref., by Francis Hueffer
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3.
視聴覚資料 |
Mahler . Wagner ; The Columbia Symphony Orchestra ; Bruno Walter, conductor
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4.
視聴覚資料 |
Beethoven ... [et al.] ; Gwyneth Jones, soprano ; The Vienna State Opera Chorus ; The Vienna Opera Orchestra ; Argeo Quadri, conductor
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