Controllable deep melody generation via hierarchical music structure representation

• URL: http://arxiv.org/abs/2109.00663v1
• Date: Thu, 2 Sep 2021 01:31:14 GMT
• Title: Controllable deep melody generation via hierarchical music structure representation
• Authors: Shuqi Dai, Zeyu Jin, Celso Gomes, Roger B. Dannenberg
• Abstract summary: MusicFrameworks is a hierarchical music structure representation and a multi-step generative process to create a full-length melody. To generate melody in each phrase, we generate rhythm and basic melody using two separate transformer-based networks. To customize or add variety, one can alter chords, basic melody, and rhythm structure in the music frameworks, letting our networks generate the melody accordingly.
• Score: 14.891975420982511
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in deep learning have expanded possibilities to generate music, but generating a customizable full piece of music with consistent long-term structure remains a challenge. This paper introduces MusicFrameworks, a hierarchical music structure representation and a multi-step generative process to create a full-length melody guided by long-term repetitive structure, chord, melodic contour, and rhythm constraints. We first organize the full melody with section and phrase-level structure. To generate melody in each phrase, we generate rhythm and basic melody using two separate transformer-based networks, and then generate the melody conditioned on the basic melody, rhythm and chords in an auto-regressive manner. By factoring music generation into sub-problems, our approach allows simpler models and requires less data. To customize or add variety, one can alter chords, basic melody, and rhythm structure in the music frameworks, letting our networks generate the melody accordingly. Additionally, we introduce new features to encode musical positional information, rhythm patterns, and melodic contours based on musical domain knowledge. A listening test reveals that melodies generated by our method are rated as good as or better than human-composed music in the POP909 dataset about half the time.

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