The cache is not hidden at the given coords - use them to navigate to a structure in the park connected with music. On this structure there are the names of 8 composers, A-H on the above diagram.
To find the final coordinates you need to make a note of the 8 composers and count the number of letters in each name.
Final coords are as follows N53 48. C D (G - D) W001 46. (H – E) C D
Bring a Pen - There are few rules in the game. But one rule is that you need to sign the logbook. Always pack a pen to make sure you're ready to sign your Geocaching username, the date, and leave a note.
