The sixth and seventh degrees are raised a half-step when going up (notice that sometimes when raising a note you'll end up on another white key), like the C-sharp melodic minor scale - where you need to raise B, but most of the time you just play the black key to the right on the way up, and revert to the natural notes on the way down.
Natural minor scales do not have raised 7ths as in harmonic minor scales. They don't have raised 6th in ascending scales as in melodic minor scales. Hence the notes are the same for ascending and descending scales: C D Eb F G Ab Bb C.
The semitones (half steps) in a natural minor scale are between the 2nd and 3rd and the 5th and 6th notes.
The A Flat Natural Minor Scale
The seventh degree is raised by a semitone both ascending and descending.
There are two sharps in b natural minor: F# and C#
F sharp in A major and in A melodic minor going up, and F natural in A natural minor, A harmonic minor, and A melodic minor going down.
The harmonic minor scale has the 7th note of the natural minor scale raised. The melodic minor scale has the 6th and 7th notes of the natural minor scale raised and then lowered. e.g. A natural minor: A, B, C, D, E, F, G, A A harmonic minor: A, B, C, D, E, F, G#, A A melodic minor: A, B, C, D, E, F#, G#, A, G, F, E, D, C, B, A
Natural minor, harmonic minor, and melodic minor
Harmonic minor scale has a raised 7th in both ascending and descending scales. Melodic minor has raised 6th and 7th in ascending scale. It is similar to natural minor in descending scale.
A melodic minor scale is a minor scale where the sixth and seventh are raised by a half step as the scale ascends; however, the melodic minor scale is played exactly the same as a natural minor scale as it descends.
The difference between a melodic minor scale and a harmonic minor scale is that in a melodic minor scale, the sixth and seventh scale degrees are raised on the way up, and on the way down they are the same as they would be in natural minor. In a harmonic minor scale, only the seventh scale degree is raised and stays the same on the way down.
There are three varients of a minor scale: natural, harmonic and melodic.
The ascending melodic minor uses all the same notes as the relative major, except the sixth and seventh note, which are each raised one half tone. The descending melodic minor is the same as the natural minor, in which the sixth and seventh notes are not raised.
There are a few types of scales for EACH key: major natural minor harmonic minor melodic minor The major is the one that you typically learn first, natural minor next, etc. The harmonic minor scale is a scale that is similar to the natural minor, only the 7th tone is raised by a half step. For the melodic, it is similar to the harmonic only its 6th tone is ALSO raised. NOTE: when you are coming down on a melodic scale, play the natural minor scale for that key. There are as many of each type of scale as there are scales, which, in total is 48. Including all of the 4 types listed above.
Melodic Minor
two in natural minor, three in harmonic minor, and two in melodic minor going up and down.
pure (natural), harmonic, and melodic pure minor-none of the scale degrees are altered harmonic minor-7th scale degree raised a half step melodic minor- 6th and 7th scale degrees raised ascending and pure minor descending