What I'd really like is:

while (button == "Next Track") {

  if (info_mode != ("Now and Next"||"Seek Tool")){

     # mode is Line, Transient, Track or Off.

     change_for_3_seconds_to("Now and Next")

  }

}

While we're at it, I'd also really like a quick seek mode, entered from a FFD button press:

while (button == "Fast Forward") {

  if (info_mode != "Seek Tool") {

     change_for_3_seconds_to("Seek Tool")

  }

}

Of course this wouldn't be so easy in the real code, for instance the player would need to reassign the buttons and knob to the temporay mode, and handle the timeout whilst in that mode. This would allow seeking so while you turned the knob whilst in the temporary "Seek Tool" mode, the timeout doesn't occur, but once you stop turning the knob, the 3 second timeout counts down again to return to the 'real' mode.