That line at the bottom of the screen of a digital music player that shows the length of the recording at the right and has a cursor showing how far along you are? That’s the scrubber bar. And you can use your mouse on that cursor to skip ahead or behind to any particular point in the recording. That gives a listener control over the time element of a piece of music — and, music being a time-based art form, this (though we may not realize it) completely changes a listener’s relationship to music. Brandon Lincoln Snyder digs into that change. – NewMusicBox