Edited from the 7th episode of La corda d’oro primo passo anime.The repeating version.The first half is arranging version with solo and duet and the later half is full duet version.
Relative my OST contents: http://youtu.be/cFynZ0B1Olc
Len Tsukimori playlist https://www.youtube.com/watch?v=w7r41LM-iyo&index=8&list=PLOYsUxAW0KI-POlkcu2h3risbl4Thjsn9
MAG.MOE - The MAG, The MOE.