/jp/ - Otaku Culture

>>15138914
Gentlemen I need help. My HDD died and I can't remember this 2hu tracks that I can't find for lack of information.
1) Song with an electronic vibe and is/used to be on jewtube. Sole hint I have is pic related (NOTHING orchestral, I've checked)
2) Song related to Sakuya and ends with the most famous piano cadence of Rachmaninov's 2nd Piano Concerto.
Sb pls...? ;_;