D minor scales are related to the F major even though some contain notes not in the F scale. Minor keys are good for sad songs because of their sound
The D natural minor scale shares the same notes as the relative major key of F. This scale is also the D Aeolian mode from the major scale modes
D Natural Minor Scale
Chords in D Natural Minor Scale
D Melodic Minor Scale
To make a melodic minor scale you just flat the 3rd of a major scale.
Chords in D Melodic Minor Scale
D Harmonic Minor Scale
To make a harmonic scale from a major scale you lower the 3rd and 6th note of the major scale
This scale has a Latin music sound.
Listen
The D minor harmonic scale
Minor Scale Modes
These scales also have modes like the major scale. They are used for improvising over different chords.
The natural minor scale modes are the same as the major scale modes. The natural scale is called the Aeolian mode.
Major Scale Modes
Harmonic Minor Scale Modes
Melodic Minor Scale Modes
I hope you found this page useful.