Counting black and white piano keys
Given a major or minor triad (3 note chord) name, return the amount of black and white piano keys needed to play it. (I will add more explanation later)
Example
Cmaj = 3 white, 0 black
Fmin = 2 white, 1 black
G#maj = 1 white, 2 black
Gbmaj = 0 white, 3 black
Input can be the chord name or can be divided into 2 variables: Root (C, F, G#, Gb) and quality (maj, min). I will extend on music theory if this is accepted as a good challenge
Output must be an array of 2 position where the first one is the number of white keys and the second one the number of black keys
Has this been asked before?