The minor scale is one of the fundamental scales in music. A minor scale is a sequence of 8 notes (7 unique notes, with the 8th repeating the 1st an octave higher) that follow a specific pattern of whole and half steps. The minor scale follows this specific pattern: Whole, Half, Whole, Whole, Half, Whole, Whole. If you want to think of it as a phone number it would be 212-2122. You can apply this pattern to any starting note, and it will create a minor scale.
Minor scales have a sad or morose sound. They’re common in all types of music and serve as the foundation for understanding other scales and chords.