/*
* Set the equalizer values.
*
* This method takes either a preamp value and 10 band values, or a
* preamp value and an array of band values.
*
* This method raises an Xmms::Error exception if XMMS is not running,
* and an ArgumentError exception if the number of arguments isn't 2 or
* 11.
*
* Examples:
* bands = [0.0, -0.5, 0.9, 0.0, 0.0, 0.0, 0.2, 0.5, -0.1, 0.0]
* remote.set_equalizer 0.0, bands
*
* remote.set_eq 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0
*
*/
static VALUE xr_set_eq(int argc, VALUE *argv, VALUE self) {