Systolic Murmur (S1-S2)
Diastolic Murmur (S2-S1)
Tricuspid valve stenosis
Tricuspid valve fails to open properly; increased right atrial pressure; less blood in right ventricle
Tricuspid valve insufficiency
Tricuspid valve fails to close properly; backflow of blood into the right atrium; less blood in the right ventricle  
Pulmonary semilunar valve stenosis
Pulmonary semilunar valve insufficiency
Bicuspid valve stenosis
Bicuspid valve insufficiency
Aortic valve stenosis
Aortic valve insufficiency