Lust Sin for violin from the game series "BlazBlue",artist: Daisuke Ishiwatari,Album:Blazblue:Calamity Trigger Original Sountrack,comment:if it's any help for the transcriber,'these two links will take you to a video in youtube with the song,the first is the original song,while the second is Yuusan playing the song on a violin(even so haven't been able to find sheet music anywhere)
Original:https://www.youtube.com/watch?v=shRhCqLjuWA Yuu:https://www.youtube.com/watch?v=Yy2GbTX2aeo