Q: Could you explain it through your version of music theory?
A: after listening to a bit more of the song for some context, the first 2 chords seem to be implying Fmaj7, and Cmaj7/E with C on top. you'd expect the next chord to be Dmin7 except of course there's this Bb note on top that sticks out like a sharp knife. and the fourth chord sounds like a huge amount of stacked fourths. probably just fourths stacked all the way from middle C# until you get up to D