;;;; You should have received a copy of the GNU General Public License
;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+(define-public (ly:make-listener callback)
+ "This is a compatibility wrapper for creating a \"listener\" for use
+with @code{ly:add-listener} from a @var{callback} taking a single
+argument. Since listeners are equivalent to callbacks, this is no
+longer needed."
+ callback)
(define-public (Measure_counter_engraver context)
"This engraver numbers ranges of measures, which is useful in parts as an