Repetition, lists in lyrics and step down bass chromatically

About an hour ago this nice song had been transmitted on Pepper FM radio Athens:


Borderline - Tame Impalla
https://m.youtube.com/watch?v=O3u0qCcpz-k


It uses effectively the nice trick of classical composers such as Vivaldi, Bach, Purcell of bass going chromatically down.


This song is written on the scale or key of C minor. Ie all notes write or natural except E, A, B which are flat.


Chromatically means semitone by semitone. Semitone is also called halftone.


So bass goes down from
C.  to
B
bB
A
bA


A very nice moment is (as on classical music) when bass becomes bA. By using the code 1 3 5 7 the chord or harmony is
A C E G and using the correct flats (see above) the harmony is:
bA C bE G
One of the best sounding chords on our planet.
It is called: A flat major 3rd major 7th
(In music engineering all intervals are referenced to bass just like in electronic engineering all electric field potentials are referenced to ground 0 volts. In this example bass is the lowest note, the note A.


Just before it bass is A natural.
Can we think that this song music passes by the C Dorian scale (which has A natural) and then resolves to default A minor scale or key?


See or listen also:


Bach Bass Rules - PDF


Harmony - Piston


Suitable examples of classical music may be:


4 seasons Automn, slow movement - Vivaldi
Dido and Aeneas - end movements -  Henry Purcell
Et Incarnatus Est - Mass in B minor - Bach