【下田麻美】 リグレットメッセージ 【Shimoda Asami】Regret Message

Please take the time to read the description.

Shimoda Asami singing Kagamine Rin's Regret Message (velvet mix).
Shimoda is Rin and Len's voice provider.

Music and lyrics by mothy

Aku no musume    • 【下田麻美】 悪ノ娘  【Shimoda Asami】 Aku no mu...  
Aku no meshitsukai    • 【下田麻美】 悪ノ召使  【Shimoda Asami】 Aku no m...  

http://x-quest.jp/akuno/
リグレットメッセージ Vocal: 鏡音リン feat. 下田麻美
from the CD:
悪ノ娘～凄艶のジェミニ～ ボーカル＆サウンドトラック (on sale, ￥2,000)

A play based on Rin and Len's Aku no series took place from 2010.01.27 to 2010.01.31 at the Tokyo Metropolitan Art Space. The original soundtrack (the CD is mentioned above) was composed by the author of the series, mothy (AkunoP).

Tokyo Metropolitan Art Space
http://www.geigeki.jp/index.html (english available)

I won't give any download link.