Match the actual audio filename
Jellyfin recognises corresponding local .lrc, .elrc or .txt lyrics beside the audio. An owned recording named Rehearsal.flac therefore needs a matching basename, such as Rehearsal.lrc. Compare the real filename, including an extension hidden by the file manager, before investigating a display problem. Two songs with the same title in different albums still need unambiguous local associations.
Review content and timing separately
Use lyrics you wrote or have permission to store and display. Keep the text's origin and permitted use with your collection notes. A lyric file being discovered does not establish that its words or timestamps match the audio edition.
For a self-recorded song, check the beginning, a point in the middle and the final passage. A consistent offset and a gradually drifting timeline suggest different problems. Preserve the original lyrics and timing before editing so you can compare a correction with the earlier file.
Check the intended client
Review whether the chosen client exposes the lyric format and navigation you need. Record the client and server versions when assessing the sample. If lyrics are absent, first distinguish file discovery from client presentation; repeatedly rewriting timestamps will not resolve a file that was never associated with the track.
Questions answered
Does matching the song title inside the text file establish the association?
Use the documented filename relationship and location; do not rely on text content alone.
Can I assume a recognised lyric file is synchronised correctly?
No. Check representative timestamps against the exact audio edition.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.