As mentioned on the front page, Lapistoria's song unlock method is through Story Mode. By playing songs, you fill a meter to unlock new cutscenes, and certain stories will unlock a song at the end as well! There does, however, exist stories that don't unlock songs; you may also earn effects and deco parts.
This all being said, though, there are... a LOT of stories in this game. As of October 1st, 2022, the main story has been completed! There are several side and card stories to cover, though! I'll be prioritizing the ones that take place in Lapistoria, then we'll see if I can get the rest.
I would like to say now that I will be translating these with the help of DeepL. I, unfortunately, don't know Japanese myself, and while English is my first language I can be a bit awkward with it. I'll do my best to be as accurate as possible, but please don't hesitate to contact me with retranslations, and PLEASE do not put these translations on another wiki (especially not the Fandom wiki, I have my qualms with that one...) without giving them a second pass! Thank you!
(Also, most (if not all) main stories that give songs have alternate final dialogue should you fail to clear the song given. Since this translation runs on the assumption that the player clears the song, most of these have not been translated (with the exception being at the very end, When The World Shines). There's minimal differences, anyways.)
(Hover over/long press character Pop-kun and other images for little blurbs!)