Reuse existing music/instrumental with new lyrics in a different language

Right now, when I want the same song in another language, I have to generate a new track from scratch, which changes the melody, arrangement, and overall sound.

It would be great to keep the existing instrumental/melody of a song I've already made and only swap out the lyrics, for example to produce a version of the same song in a different language while preserving the original vocal style and composition.

Use case: I have a finished song I like and want to release it in multiple languages (or with reworded lyrics) without losing the sound of the original.

Expected behavior: Select an existing song, provide new lyrics (in any language), and generate a version that keeps the same music/melody but sings the new text.