Wind Detector

The Wind Detector is a treasure in Pikmin 4. It is actually a harmonica. On it, the words "MELODY" and "RHYTHM" are engraved.

Collecting the treasure
The Wind Detector is almost completely buried at the very north of the Blossoming Arcadia, with a small rectangle poking out indicating its location. To collect this treasure, you must throw 7 Pikmin in its vicinity.