Full version of Aqua from Chipper & Sons Lumber Co. 
this track is essentially the main theme and it is a royalty free music.

Aqua

Full version of Digital Smile from Chipper & Sons Lumber Co.
this track is used in the overworld and it is a royalty free music.

Digital Smile

Full version of Sunny Morning, this music is used in Termite King's Shop

full version of Yoga Bossa from Chipper & Sons Lumber Co.
this music is used in Tinker Owl's shop and in the Campfire under Stork's Crossing

full version of Window Raindrops from Chipper & Sons Lumber Co.
this music is used underwater

full version of Day after Day from Chipper & Sons Lumber Co.
this music is used in the encounter of the Strange Traveler

A track from the Mother Otonoishi 2 album