Ah, yes: Maestro. Maestro ( musical help from iluvcache) found
his rhapsody when he was serenaded by nature’s ballad. This
piece of music should bring you right to its accompaniment in
nature.
Final box is a military decon container (pictured below). Please
be sure to replace container exactly as you found it, as the hints
suggest a certain way of placement of things.
[no hints to decoding puzzle]
[hint to hiding spot] snpr vagb gur pnir...nobir gur ebpxf vf jung lbh frrx.