I had a thorough look and I'm pretty sure the track titles in your download got mixed up.
The song called "Lake Side -In Winter-" just has to be for the location "Map (Snow Field)" and this matches a bunch of track lists I found on YouTube.
Among those is the channel of CaptainGordonVGM, which has the OST a one track per video:
https://www.youtube.com/watch?v=2z2hMUR ... tr&index=5
The location names you have in the comments look good. It is just the actual song titles that somehow don't seem to fit.
I suggest the following name changes:
- 04 "Lake Side -In Winter-" -> "Lake Side -In Summer-"
- 06 "Hit -Get-No No Wow" -> "Rhodes Roll"
- 07 "Rhodes Roll" -> "Open Space"
- 08 "Lake Side -In Summer-" -> "Hit -Get- No No Wow"
- 09 "KUTIBUE" -> "Lake Side -In Winter-"
- 10 "Open Space" -> "KUTIBUE"