Sned hlep
need key sig and time sig for this
and the same for this
I agree that "Water Town" is in D major. You can use 4/4 for the meter, but I feel a somewhat strong pull toward 2/2 meter.
"Water Town" borrows a significant number of chords from D minor (e.g. C major, B flat major--the borrowing is prominent from 0:13-0:17), but the important cadences are still in D major, and long stretches of the theme are in D major.
"Day Travel 2", though...it's in 4/4 time, but this theme is in a hinterland between D major and D minor to me, and you can make strong cases for either. It doesn't help that there are prominent G#'s at 0:05-0:08 (implying D Lydian or "D over-sharp major"), then a flip to the D Phrygian Dominant scale from 0:12-0:16 (I normally use a D minor or even G minor key signature in this case, as the Phrygian Dominant is to harmonic minor as Mixolydian is to major/Ionian).
Sections like 0:25-0:33 and 0:51-0:59 change between so many keys in so short a time that I wouldn't change key signatures at those points.