Which of the following options does not utilize a VTR's capabilities?

The choice that does not utilize a VTR's (Video Tape Recorder) capabilities is the playback of audio tracks. A VTR primarily functions to record and playback video, having the capability to include audio as part of the recorded content. However, the specific act of playing back audio tracks independently is typically not the main focus of a VTR. VTRs are designed to manage video sequences, including the synchronization of audio and video during capture and playback, but when it comes to standalone audio playback, this function is more commonly served by dedicated audio playback devices.

In contrast, recording live events, replaying captured video sequences, and editing previously recorded footage are all fundamental capabilities of a VTR. It is specifically designed to handle the recording and manipulation of video content, which includes the associated audio elements. The editing process on a VTR can also include cutting or rearranging footage, further showcasing its primary functions related to video and audio in a combined manner, but not as an isolated audio playback device.