This drill will contrast a cycle with an early systolic murmur with a cycle with an early diastolic murmur.
An early diastolic murmur has a very low frequency which gives it a rumbling quality. It is an indication of mitral stenosis.
Listen as long as you want.When you are confident that you can detect the difference, move on to the test. In the test we will play cycles randomly and ask you to tell which is which.