Futga: Towards Fine-grained Music Understanding through Temporally-enhanced Generative Augmentation
This work addresses the need for more detailed music understanding for applications in music analysis and retrieval, though it is incremental as it builds on existing datasets and methods.
The paper tackles the problem of limited fine-grained and time-aware descriptions in music captioning by proposing FUTGA, a model that uses generative augmentation with temporal compositions to produce detailed captions for full-length songs, resulting in improved performance in downstream tasks like music generation and retrieval.
Existing music captioning methods are limited to generating concise global descriptions of short music clips, which fail to capture fine-grained musical characteristics and time-aware musical changes. To address these limitations, we propose FUTGA, a model equipped with fined-grained music understanding capabilities through learning from generative augmentation with temporal compositions. We leverage existing music caption datasets and large language models (LLMs) to synthesize fine-grained music captions with structural descriptions and time boundaries for full-length songs. Augmented by the proposed synthetic dataset, FUTGA is enabled to identify the music's temporal changes at key transition points and their musical functions, as well as generate detailed descriptions for each music segment. We further introduce a full-length music caption dataset generated by FUTGA, as the augmentation of the MusicCaps and the Song Describer datasets. We evaluate the automatically generated captions on several downstream tasks, including music generation and retrieval. The experiments demonstrate the quality of the generated captions and the better performance in various downstream tasks achieved by the proposed music captioning approach. Our code and datasets can be found in \href{https://huggingface.co/JoshuaW1997/FUTGA}{\textcolor{blue}{https://huggingface.co/JoshuaW1997/FUTGA}}.