Lacuna
8.2#1 in audio converter softwareFrom $9.50 a monthFree planiOSWebAPIExtension
VisitLacuna may suit writers and producers who want help drafting or revising lyrics, including users writing in one of its supported languages. It also offers a route from lyrics to an AI-vocal track.
Lyrica suits songwriters who want optional help generating or revising lyrics without giving up creative control. Its collaboration and organization features may also suit people writing together or managing songs in progress.