Shunichi KUSAYANAGI is a recording engineer who knows more about the sound source of rakugo than any other person in Japan, and he participated many times in the recording of rakugo as a recording engineer.
草柳俊一は「日本一落語音源に詳しいレコーディング・エンジニア」で、数多くの落語録音にレコーディング・エンジニアとして参加。