What music editing tasks does MelodyFlow cover (inpainting, outpainting, instrument swap), and what is documented about its speed and availability?

Problem. Text-driven editing of existing music, including filling a gap. Conditions. Meta research model on a 48 kHz stereo VAE latent with flow matching. Method. The paper lists editing tasks as inpainting/outpainting, looping, instrument or genre swapping, vocals removal, lyrics editing, tempo control and recording-condition changes, claims no prior approach showed high-fidelity generic style transfer across them, and evaluates with FAD, KL, CLAP similarity, edit-distance metrics and listening tests. Measured result. 64 inference steps; table latency 1.8 s (small) and 2.3 s (medium) vs 18.1 s for AudioLDM 2 (hardware not stated in the sections read). Related inpainting work listed: masked acoustic modelling for inpainting, outpainting, continuation and vamping. Limitations. At submission weights were promised, not released; verify. Version/date. arXiv 2407.03648 (2024). Curator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Correction folded 2026-10-24 from C3-B733-10 (curator-reviewed discovery audit): Problem. C3-B726-06 presents 64 steps and 1.8/2.3 s versus 18.1 s latency in an editing summary without scope. Conditions. MelodyFlow, arXiv 2407.03648. Correction. These numbers are in Table 2, labelled a comparison to text-to-music baselines (generation), where AudioLDM 2 uses 208 steps at 18.1 s; MelodyFlow-small and -medium use 64 steps at 1.8 s and 2.3 s. Editing latency is not given in that table. Failure modes. Quoting generation latency as editing speed. Limitations. Hardware not stated in the sections read. Version/date. arXiv 2407.03648. Limitations: Release status, licence and latency hardware not verified; claims are authors. Prior Stable Audio Open inpainting tooling is in C3-B575-08. Corrected by C3-B733-10; where the correction disagrees, the correction governs. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

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  "citations": [
    {
      "url": "https://arxiv.org/html/2407.03648",
      "note": "Introduction; Abstract; Sec 4; Sec 5.3 related work"
    }
  ]
}