Otoha adds artwork, synced lyrics and offline playback for AI songs

ChainBow’s Otoha iOS and macOS player is updating how listeners manage AI-generated music, adding artwork, synced lyrics and offline playback for files that often arrive with random names and no metadata. The app is aimed at people organizing self-made tracks, downloads and other local music outside streaming services.

Why it matters: - AI music is creating more finished songs, but many arrive as messy files with no artwork, no timed lyrics and filenames that are hard to manage. - Otoha is built to turn those files into a usable local library on iPhone, iPad and Mac. - The app also keeps playback offline, which matters for flights, commutes and places without coverage.

What happened: - ChainBow Co., Ltd. said Otoha now supports artwork, synced lyrics and offline playback for AI-generated songs. - The iOS and macOS player imports files through the system share sheet, Files, iCloud or AirDrop. - Otoha lets users fill in title, artist, album and artwork metadata for imported tracks. - The app handles music files stored locally instead of inside a streaming catalog.

The details: - Lyrics can be added three ways: by importing LRC or SRT files through the lyrics manager, by detecting a subtitle file with the same name beside the audio in one iCloud folder, or by transcription from the audio itself. - Timed lyrics scroll in sync, including on the lock screen. - Users can correct any lyric line by hand, and the change is retained. - Otoha supports MP3, M4A, M4B, AAC, WAV, ALAC, FLAC and AIFF. - The app plays lossless files without conversion. - Imports reference files in place rather than copying them, which helps avoid duplicating large libraries in device storage. - Removing a track from a playlist does not delete the source file. - The same library can hold CD rips, purchased downloads, live recordings and regional releases that never reached a catalog. - For unfamiliar-language music, subtitle translation can show a second line, an AI explanation can clarify idioms and a selected line can be turned into a lyric card for sharing. - Local playback includes no advertising. - Playlists, synced lyrics, transcription and speed control are included at no charge, with a set number of playlists in the free allowance. - Additional playlists, more themes, advanced audio controls and cloud AI features are sold as optional in-app purchases.

Between the lines: - The release reflects a shift from streaming-first listening to personal ownership and local file management, especially as AI tools make amateur music creation easier. - ChainBow is positioning Otoha as a utility for the “AI era,” but the app itself does not generate music. - Otoha asserts no rights in imported songs, and ownership depends on the composing service’s terms, the plan used and local rules. - The app does not include its own music catalog and does not play DRM-protected downloads from Apple Music, Spotify or Audible.

What's next: - ChainBow is directing users to its AI music library guide, personal music library guide and App Store listing. - The company is also promoting Otoha’s social presence on X.

The bottom line: - Otoha is betting that the next music library problem is not access, but organization. - The app is designed to make AI-made songs behave more like finished records and less like stray files.