if you were to play every black and white note on a piano in ascending or descending order, you will have just played the __________.

if you were to play every black and white note on a piano in ascending or descending order, you will have just played the chromatic scale.

The chromatic scale is commonly known as a number or set of twelve pitches used in tonal music, with notes separated by the interval of a semitone.

Chromatic is a Greek word called chroma Color; Its types includes:

Harmonic Chromatic Scale: this is a type of set form
Melodic Chromatic Scale is known to raise music going up, lower going down.
Melodic Chromatic Scale is done using a set form.

Conclusively, chromatic scale in music are said to be the scales that comprises of all twelve tones in the right order with also twelve other iterations or inversions of scale.

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