It seems to be using the pentatonic scale, which is generally easy to deal with. It is also quite limited though, with only 5 pitches available out of the standard 12 in an octave.
All 12 pitches would sound horrible, you need at least a diatonic scale.
Q: Which scale is used in this? How did you come up with it?
A: D A Bb C D E F A C are the pitches. I used the scale some models of Hang drums are tuned into.
Q: Which scale is used in this? How did you come up with it? A: D A Bb C D E F A C are the pitches. I used the scale some models of Hang drums are tuned into.
Changing the scale could be a nice feature...