Recorded on March 2, 1965.
Broadcast on March 7 by NHK
The original transcript belongs to the Sanshin Zen Community and was edited by Shohaku Okumura
https://sanshin-source.weebly.com/sawaki-interview.html
With utmost respect for the important legacy this recording is, I did a careful and detailed editing work to correct sections of text, fix grammar and synch the transcript with the audio. It is probably not perfect, but not because of a lack of trying.