Cache is not at the listed coordinates. Only a large body of water resides there. Cache consists of a traditional container in a typical hide location. BYOP. Night caching not allowed. Parking close by.
The piano keyboard consists of a series of 7 repeating notes that continues up in scale.
This cache will focus on the white keys representing simple notes. Chords are groups of notes (or keys played together). Of course none of this matters for the puzzle solve, but it is always good to know what you don't need to know.
To find the cache solve the puzzle below. You can try playing the chords, but don't expect it to sound pretty.
