Symphony in E♭ major (fragment, lost), K. 383g
볼프강 아마데우스 모차르트 작
Mozart’s Symphony in E♭ major (fragment), K. 383g, is a tantalizing remnant from 1782—his first full year as a freelance composer in Vienna. The work is listed as a single Sinfoniesatz (symphonic movement), but its surviving musical substance is extremely limited and the original source is reported lost.
What Is Known
K. 383g is identified in the Mozarteum’s Köchel Verzeichnis as a Symphonic movement in E flat (Sinfoniesatz in Es), generally dated to 1782 and often associated—cautiously—with Vienna, where Mozart was consolidating his public career through concerts, commissions, and new orchestral writing.[1] The New Mozart Edition’s symphony preface notes that this symphony fragment (also cited as KV App. 100 / 383g in older numbering) can only be mentioned, underscoring that no performable score is available through the edition.[2]
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Beyond catalogue-level identification (key, genre, and fragment status), no securely transmitted autograph or set of parts is presently accessible to describe its extent, instrumentation, or any relationship to Mozart’s other orchestral projects of 1782 (including the contemporaneous Haffner symphony, K. 385).[3]
Musical Content
Because the fragment is not available in a surviving, consultable musical source, its thematic material, form (beyond “single movement”), and orchestration cannot be described with confidence in musical terms. The most that can be stated is what the title implies: Mozart conceived it as a symphonic opening (or standalone) movement in E♭ major, a key he often reserved for ceremonial brightness and spacious sonority in orchestral writing.
[1] Musicalics composer-work listing noting K.383g/A.100 as a “Fragment de symphonie” (symphonic movement), dated 1782.
[2] Digital Mozart Edition (DME), New Mozart Edition (NMA) symphonies preface (IV/11/10), mentioning the symphony fragment KVApp. 100 (383g) as only briefly mentionable (no performable text).
[3] Mozarteum Köchel Verzeichnis page for K.385 (Haffner Symphony) showing K.383g listed among “Symphonies and Individual Movements for Orchestra” as “Symphonic movement in E flat.”