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<addClip>: Adds a new clip to the playlist.
<cue>: Cues the specified item.
<listClips>: Lists all the clips in the playlist.
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<newProject>: Creates a new, empty project.
<pause>: Pauses player.
<playBackward>: Decreases playback rate.
<play>: Starts player.
<playForward>: Increases playback rate.
<previousFrame>: Goes to previous frame.
<removeClip>: Removes the specified clip from the playlist.
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