He was so struck by the sound that he went back the next day with a tape recorder to try and capture it.

Source: https://blogcritics.org/exclusive-interview-parlando-founder-music-director-ian-niederhoffer-october-4-concert/

Pause, stop, rewind, and record, just like an old-fashioned tape recorder.

Source: https://www.pcworld.com/article/2002140/new-audacity-turns-your-computer-into-a-sound-studio-for-free.html

The tape recorder used to record the Beatles at Stowe was a Butoba MT5, not a Nagra III as an earlier version said.

Source: https://www.theguardian.com/music/2023/apr/09/please-please-us-lost-tape-of-beatles-school-gig-could-be-saved-for-the-nation