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Gus G. Xia

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#small language model Preprint Oct 2026

AutoSynth: Learning to Generate Editable Synthesizer Programs from Audio and Text

AutoSynth, which represents MIDI performance events, fixed synthesizer parameters, and variable-length modulation routes as a unified sequence for a synthesizer, and learns their dependencies with an audio-conditioned autoregressive model, is presented.

Tristan Wu, Daniel Chin, Li-Wei Lin et al. · 0 citations
#artificial intelligence Preprint Oct 2026

From Isolated Feature to Orbits: Discovering Music Concepts via Multi-SAE Alignment

How can we understand what a music foundation model has learned \textit{internally}? Most interpretability approaches, such as probing and Sparse Autoencoders (SAEs), focus on identifying individual features with minimal structural assumptions. We argue that many concepts are better understood as \textit{structured rel...

Li-Wei Lin, Gus G. Xia · 0 citations
#machine learning Preprint Sep 2026

YuE2: Unifying Symbolic and Audio Music Generation at Frontier Quality

Symbolic models make melody, harmony, rhythm, and form explicit but typically stop before a finished recording; audio models produce complete songs while leaving composition implicit. We introduce YuE2, which unifies symbolic and audio music generation at frontier quality through symbolic planning. A single AR-NAR Mixt...

Rui-Bin Yuan, Jia-Hao Pan, Jun-Yan Jiang et al. · 1 citation
Preprint Aug 2026

DDSynth-RL: Audio Synthesizer Inversion via Discrete Diffusion with Reinforcement Learning

Experiments on Dexed show that, after supervised training, the discrete diffusion model is competitive with autoregressive and flow-matching baselines, and reward-based fine-tuning further improves out-of-domain audio matching performance.

Tristan Wu, Daniel Chin, Ju-Nan Zhang et al. · 1 citation · ⚡1
Preprint Aug 2026

Learning Music Style for Piano Arrangement Through Cross-Modal Bootstrapping

A cross-modal framework that learns implicit music styles from raw audio and applies them to symbolic music generation and generates piano performances jointly conditioned on a lead sheet and a reference audio example, enabling controllable and stylistically faithful arrangement.

Jing-Wei Zhao, Gus G. Xia, Ziyu Wang et al. · 0 citations

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