             if isAVSequencer {
                 return Double(avSequencer.rate)
             } else {
-                print("AVSequencer ERROR ! rate only work if isAVSequencer ")
+                print("AKSequencer ERROR ! rate only work if isAVSequencer ")
                 return nil
             }
         }

            if isAVSequencer {
                avSequencer.rate = Float(newValue!)
            } else {
                print("AVSequencer ERROR ! rate only work if isAVSequencer ")
            }
        }
    }

            }
        } else {
           //do nothing - doesn't apply. In the old C-api, MusicTracks could point at AUNodes, but we don't use those
            print("AKSequencer ERROR ! setGlobalAVAudioUnitOutput only work if isAVSequencer ")
        }
    }

