Key holding or allegation
Complaint allegations only. Plaintiffs allege discovery and audio-fingerprinting evidence identifies a large corpus of Sony-controlled recordings used for training.
Why it matters
Major test of discovery-supported, work-specific proof of mass training-data use in AI-music litigation.
Facts
Sony Music and affiliated labels filed a separate action concerning more than 30,000 additional sound recordings after discovery in the earlier Udio litigation allegedly enabled forensic identification of works in Udio training data.
Issues before the court
Whether the identified recordings were copied into Udio training, whether that use is fair use and whether AI-generated music competes with or substitutes for the recordings.
What the court did not decide
Corpus inclusion, infringement, fair use, output similarity, market harm and remedies remain unadjudicated.
Procedural timeline
U.S. District Court for the Southern District of New York
Complaint filed: Sony Music and affiliated labels filed a separate Udio action concerning more than 30,000 additional sound recordings allegedly identified through discovery and forensic analysis of the training corpus.