The iTunes lookup is JP-first (for correct Japanese titles/artwork), but the Japanese
store returns katakana-localized names for Western artists — so DJ Snake's single got
album_artist / folder "DJスネイク • アルーナジョージ" while the title/artist stayed English.
- lookupItunesTrackMeta: take the NAMES (album, album-artist, track, artist) from the US
store when the search isn't Japanese; keep JP names for actual Japanese songs.
- album & artist download paths: if iTunes' collectionArtistName is Japanese but the
request artist isn't, keep the request's English name for the tag and folder.
Already-downloaded files aren't rewritten — re-download or fix via the editor.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>