Feature description
Add built-in AI-powered lyric translation in Symfonium.
The feature would let users translate existing lyrics directly inside the app into their preferred language. Ideally, this would work with synced lyrics by translating line by line while keeping the original lyric timing intact.
Possible options could include:
Choose a target translation language
Show original lyrics only, translated lyrics only, or both
Translate synced lyrics line by line while preserving timestamps
Cache generated translations so they do not need to be recreated every time
Allow users to provide their own AI provider/API key to avoid extra server costs for Symfonium
Optionally save/export the translated lyrics as LRC/TTML metadata or external lyric files
Problem solved
Symfonium can display translated lyrics when they already exist, but many music files only have lyrics in the original language. Users who listen to music in foreign languages currently need to leave the app, use another tool, or manually create translated lyric files.
This makes understanding lyrics less convenient, especially for people with large libraries or music in many different languages.
Brought benefits
This would make Symfonium more useful for multilingual music libraries and for users who want to understand lyrics without leaving the app.
It would also improve the lyrics experience by reducing the need for manual lyric editing, external translation tools, or switching to other players just for translated lyrics. Caching the results would make the feature efficient after the first translation.
Other application solutions
Some music apps, such as Metrolist, offer AI lyric translation features where lyrics can be translated inside the app. A similar optional feature in Symfonium would be very useful, especially if users can configure their own AI provider/API key.
Device type
Phone
Additional description and context
I searched existing feature requests and found requests related to displaying translated lyrics, translation styling, lyrics APIs, and romanized lyrics. However, I did not find an exact request for built-in AI-generated lyric translations inside Symfonium.
This request is specifically about generating translations from existing lyrics inside the app, not only displaying translations that are already embedded or provided by the server.
The screenshots I provided are from the Metrolist app.
Screenshots / Mockup
I searched existing feature requests
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