Otoha AI Music Player
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Songs exported from AI music tools arrive as files named after a random identifier, with lyrics. The iOS app plays them without a connection.
足立区, TOKYO, JAPAN, July 31, 2026 /EINPresswire.com/ — Otoha, the iOS and macOS audio player created by ChainBow Co., Ltd., is designed for music that lives as local files rather than inside a streaming catalog — including the share that listeners now compose themselves.
AI music generation tools have turned songwriting into something a non-professional can do on a regular weeknight, but the output is poorly handled by those same tools. A finished track downloads as a file named with a random identifier, missing any cover art, and carrying lyrics that have no timing information and remain inside a browser tab rather than within the file itself. No streaming service carries it.
Otoha treats such a file as a complete piece. It is brought in via the system share sheet, Files, iCloud, or AirDrop, and its title, artist, album, and cover art can be entered, so hundreds of songs stay neatly organized instead of being listed by an identifier.
Lyrics receive a time line in one of three ways: an LRC or SRT file exported from the composing tool and imported through the lyrics manager; a subtitle file placed next to the audio with the same file name in a single iCloud folder, which is recognized upon import; or transcription, which generates timed lines from the audio itself when no lyric file exists. The lines then scroll in sync, even on the lock screen, and any line can be manually corrected once and that change is saved.
Once imported, the song resides on the device. It plays with its lyrics on a plane, in a car, or anywhere without network coverage, and playback makes no network requests.
The same library can hold CD rips, purchased downloads from independent artists and labels, live recordings, and regional releases that never appeared on any catalog. Otoha supports MP3, M4A, M4B, AAC, WAV, ALAC, FLAC, and AIFF, including lossless formats, without requiring any conversion step. Imports reference files in their original location rather than copying them, so a large library does not duplicate storage, and removing a track from a playlist does not delete the source file.
For music in an unfamiliar language, subtitle translation can show a second line beside the original, an AI explanation can clarify an idiom, and a selected line can be turned into a lyric card for sharing.
"Writing a song used to need a studio and now it needs an evening, so the question is where all that music goes afterwards," said LONG LI, CEO of ChainBow Co., Ltd. "A player for the AI era owes a track someone generated last night what it owes a record: a name, a cover, lyrics that keep time, and a place to live that nobody can withdraw."
Local playback includes no advertising. Playlists, synced lyrics, transcription, and speed control are available at no cost, with a limited number of playlists included in the free allowance. Extra playlists, additional themes, advanced audio controls, and cloud AI features are offered as optional in-app purchases.
Ownership and commercial rights for an AI-generated song depend on the composing service's terms, the plan under which it was created, and local regulations. Otoha plays and manages files that a listener imports; it does not generate any music and claims no rights in the results. It provides no music catalog of its own and does not play DRM-protected downloads from Apple Music, Spotify, or Audible.
The AI music library guide is published at https://otoha.co/en/guides/ai-music-library/. The personal music library guide is published at https://otoha.co/en/guides/own-music-library/. The App Store listing is at https://apps.apple.com/app/id6756565155.
About ChainBow Co., Ltd.
ChainBow Co., Ltd. is a software development company based in Tokyo, Japan. ChainBow builds domain-specific AI systems that transform expert knowledge into interactive decision tools. Otoha is its AI-assisted player for music and language listening on iOS and macOS.
LONG LI
ChainBow Co. Ltd
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