Local generation using Automatic1111 can handle it in most cases, a lot of songs are between 300-500 tokens
Related question: must we use whatever the AI throws at us based on the lyrics alone, or can we add to it (repeat a passage, for instance) to try to produce a particular result or emphasize a particular aspect?
Some AIs allow you to emphasize (add weight) to parts of a prompt so I don’t see a problem with that. Nor do I see a problem with deleting nonsense syllables if you choose (such as fa la la).
Of course, you can edit certain words so the songs can bypass the AIs censor.
Every time I have tried that it gets cut off part way through. What are you using that you can do an entire song?
Various engines, Copilot has a 4000-character limit 9most songs are less than that], Gemini, and chatGPT to name a few. Our other mod uses Midjourney.