You are incorrect - our patient's acoustic events at the lower left sternal edge include first and second heart sounds and a 3-component pericardial friction rub.
Your choice: S1 + S2 + to and fro murmur
This is a graphic example of a normal first and second heart sound along with a to and fro murmur from a systolic murmur of aortic stenosis and a diastolic murmur of Acute Pericarditis. These murmurs do not change with respiration