mpc-status-callbacks

mpc-status-callbacks is a variable defined in `mpc.el'.
Its value is shown below.

Documentation:
Alist associating properties to the functions that care about them.
Each entry has the form (PROP . FUN) where PROP can be t to mean
to call FUN for any change whatsoever.

Value:

((state . mpc--status-timers-refresh)
 (state . mpc--faster-toggle-refresh)
 (volume . mpc-volume-refresh)
 (file . mpc-songpointer-refresh)
 (song . mpc-songpointer-refresh)
 (updating_db . mpc-updated-db)
 (updating_db . mpc--status-timers-refresh)
 (t . mpc-current-refresh))