Audiotape (noun)

1. A magnetic tape recording of sound, especially music or speech.
2. A recording of sound on a cassette or reel.

Origin:

1940s: from audio- + tape.

Examples:

1. The interviewer recorded the conversation on an audiotape.
2. He listened to the audiotape of the concert.
3. The audiotape was damaged and couldn't be played.
4. The audiotape was a valuable historical record.
5. The audiotape was used to transcribe the interview.