Getting your lyrics up is a great way to engage listeners.
Short Answer: Spotify does not accept lyric text files directly from artists. You must use their official third-party partner, Musixmatch, to submit, format, and sync your text-based lyrics to your audio tracks.
Here is the correct process for getting that text content to appear with your audio.
First, you must go to the Musixmatch for Artists website and create an account to get your artist profile verified. Once you are a verified artist on Musixmatch, you can add the text file of your lyrics for any of your songs. The most critical step, however, is to use their platform’s tools to sync your text, line-by-line, with the audio from your track. After you have completed the syncing process and submitted your work, Musixmatch will review it and then deliver this text and timing data to Spotify, which will then display the lyrics on your song’s play page.
Cheers,
Jeff