Your Pokemon nod in assent, and you're on your way. As you draw nearer, the chirping gets at once louder and more...melodic? It's a strange melody for sure, but something tells you it is indeed a song.
Eventually, you come across the source of the chirping music. Five cricket-like pokemon, three smaller and two larger, are standing around in a circle. It looks like the older ones are teaching the younger ones. They notice you, but don't react in any way.
SpoilerMap! If you wish to engage them in any way. (The Ks are the Kricketots, the Rs are the Kricketunes.)