Those two bars catch my attention and I started analysing what is making it to sound so unique and pleasant. And I want to extract from it the universal bricks for the relations of music components. (It's a fragment from Dareka no Shinzou ni nareta nara)
All those notes are within the key, so no surprises here. The tempo -Allegro- adds a feel of a gallop. e.g. looks like a triad with the root on G# but with a third missing, but it still sounds "happy", and as I know, the third is defining the quality of the chord. Simply adding root note on another octave makes it sound "happy"?
For the bass line the progression is as follows:
vi IV V iii, but I don't quite understand its relation to the melodic line, sometimes it covers same notes on different octaves, sometimes not but still it sounds good, "homogeneous". What techniques for analysing that kind of relationships are good for the piece? Checking the pitch distance between them?