SymphonyGen: 3D Hierarchical Orchestral Generation with Controllable Harmony Skeleton
Generating symphonic music requires simultaneously managing high-level structural form and dense, multi-track orchestration, yet existing symbolic models often struggle with a "complexity-control imbalance" between scalability and steerability. We present SymphonyGen, a 3D hierarchical framework for contemporary orchestral generation, whose cascading decoders decompose the bar, track, and event axes, keeping decoding memory far below flat token streams and enabling conditioning at every structural level. A beat-quantized multi-pitch harmony skeleton, which may be user-written, analyzed, or model-generated, provides "short-score" conditioning, enabling outline control while producing orche...
| Authors | Xuzheng He, Nan Nan, Zhilin Wang et al. |
|---|---|
| Primary category | cs.SD |
| Published | 28 April 2026 |
| Last updated at source | 3 August 2026 |
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