Maybe I wasn't specific enough. In the [edit]->[settings]->[processing] dropdown menu the 'enable looping' checkbox is clicked and the audio track does, indeed, loop back to the beginning. However, the pause between loops is so great that, were this in the 60s, the audience might think the tape is being rewound.
While there may be nothing one can do about the gap between loops, I would imagine that being able to add an audio transition might be possible so the break/gap isn't so jarring.
Michael