Crystal Towers 2 - Another thing saved from graphical oblivion

I'm basically just going through with a notepad and correcting little things that have bothered me for a while, now. It is possible, though difficult, to finish the final boss immediately after getting eight of the instruments - and from the timestamps on the events uploaded to the site, I would guess that it took me seven or eight hours, and the game says that I've discovered/collected 48.5% of it.