Deriving the chords of Spending my Time - Roxette

Of the right notes are played it sounds amazing even on a almost toy PSS-14 (using the strings voice).


All B, E, A, D are flat.


The notes below are meat to sound together.


C F A what's the time when it's already
B D F A already
B F G morning    resolved to B E G
...
C F A
B D F A
B F G resolved to B E G
B E F resolved to B D F changed to B bD F
...
...



Bass can be omitted but even if we do so we must have it in mind while harmonizing so that we can derive the other parts or voices (simply said notes) of the chord derived by bass so that bass can be reconstructed at the listeners brain.


The above notes sound amazing together but how are they derived?


We use the very simple rules of music.


Everything is referenced to bass.
Bass is one note at a time but we need to find what that note is
Once the correct sounding bass is found, ingredient notes of chords can be derived from the series C
E G B D F A C E G B ....
We count the natural notes and then add flats or sharps.
We use the right inversions so that from going from one chord to the next we make as less changes to each voice notes as possible. For example keeping as many notes as we can the same.
We may even keep notes sustained instead of replaying the same note and it sounds even better.
Then it sounds like the real song.
7th intervals, 9th intervals, with respect to bass are prepared and the 3rd added [Bach, Niedt]


So what is the code from which everything is derived in the fabulous introduction of this song?


F
B7
E9 to E
...
F
B7
E9
B45 to B to B(-3)


B(-3) means B minor 3rd


Remember all B, E, A, D are flat.



Reference


Bach Bass Rules - Bach, Niedt - PDF