You are incorrect - our patient's systolic murmur at the upper left sternal edge is best described as early peaking and the diastolic murmur as decrescendo.
Your choice: Systolic late peaking + diastolic decrescendo
This is a graphic example of a systolic late-peaking murmur and a diastolic decrescendo murmur.
Note that the systolic murmur is mid frequency and the diastolic murmur is high frequency.