Lyrical Megalovania
harmonytheanime for Frisk
A beautiful voice, innocent yet burdened. I know this sounds demanding, but if you hear an example, it really isn't.
Sans, can you hear me calling out to you? / Your suspicion of me in here is true. / Chara somehow has been brought back around. / I'm possessed; they've murdered the Underground. (0:07-0:15; "Chara" can be pronounced however you want)
Entirely made of love, / Love or LOVE I cannot say that I know, / But when the Real Knife comes down on you, / I'm certain it will grow.
(Sing a verse from "Stronger Than You: Frisk Version." https://www.youtube.com/watch?v=OQ3z6oxNheo
I'm pretty sure you got the tune wrong. I can see that you can match notes pretty well due to your "Stronger Than You" verse, which leads me to think that you might not realize you need to use the tune of "Megalovania." Care to give it another try?