Which interval defines the distance between the first and second note of a natural minor scale?

The distance between the first and second note of a natural minor scale is defined as a Major 2nd. This interval spans two half steps, which is the interval between two consecutive notes on a piano keyboard, for instance, from A to B in an A natural minor scale.

In the context of a natural minor scale, the sequence of whole and half steps is: whole, half, whole, whole, half, whole, whole. The step from the first note to the second follows this pattern, resulting in a Major 2nd. This is consistent throughout all natural minor scales, regardless of the starting note, ensuring that the second note consistently moves up two half steps from the first.

This understanding of intervals is crucial in music theory as it provides foundational knowledge for constructing scales and melodies. Recognizing the specific intervals helps musicians analyze and characterize different scales effectively.