Property:Has time signature

This is a property of type Has type::String.
 * Allows value::4/4
 * Allows value::2/4
 * Allows value::2/2
 * Allows value::3/2
 * Allows value::3/4
 * Allows value::6/4
 * Allows value::6/8
 * Allows value::9/8
 * Allows value::12/8