diff --git a/src/exercisecontroller.cpp b/src/exercisecontroller.cpp
--- a/src/exercisecontroller.cpp
+++ b/src/exercisecontroller.cpp
@@ -114,6 +114,7 @@
 
 void ExerciseController::playChoosenExercise()
 {
+    m_midiSequencer->stop();
     m_midiSequencer->play();
 }