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arxiv 2502.08122 v1 pith:2VANHLGZ submitted 2025-02-12 cs.SD cs.AIcs.LG

Hookpad Aria: A Copilot for Songwriters

classification cs.SD cs.AIcs.LG
keywords ariahookpaddesignedassistcompositionexistinggeneratingharmony
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present Hookpad Aria, a generative AI system designed to assist musicians in writing Western pop songs. Our system is seamlessly integrated into Hookpad, a web-based editor designed for the composition of lead sheets: symbolic music scores that describe melody and harmony. Hookpad Aria has numerous generation capabilities designed to assist users in non-sequential composition workflows, including: (1) generating left-to-right continuations of existing material, (2) filling in missing spans in the middle of existing material, and (3) generating harmony from melody and vice versa. Hookpad Aria is also a scalable data flywheel for music co-creation -- since its release in March 2024, Aria has generated 318k suggestions for 3k users who have accepted 74k into their songs. More information about Hookpad Aria is available at https://www.hooktheory.com/hookpad/aria

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  1. What's a Credit Worth? A Market Framework for Attribution-Aware Compensation in Generative Music

    cs.CY 2026-07 conditional novelty 7.0

    Proposes an attribution-aware compensation framework for generative music that derives closed-form payments from catalog-level attribution informativeness and quantifies welfare effects under competition.