- there are several types of minor scales.
- what they have in common that differentiates them from major is the minor third scale degree.
- the sixth and seventh degrees are where most of the differences are.
- in practice, music normally uses the different types of minor scales freely.
- music in minor keys often borrows the leading tone from the major scale, sometimes the major third too.
- music in major keys often borrows notes from the minor scale as well.