The music is "Waltz ～ The Face of Another：Toru Takemitsu(武満徹) / Swing in Strings" sung by Aoi Yamaguchi(山口葵).
   • Waltz ～ The Face of Another (ワルツ～他人の顔...  
Video List of Aoi Yamaguchi
   / @vocalistaoi  
My woodworking video list
   / @noho91  
My woodworking homepage（のほほん木工房）
http://noho91.web.fc2.com/