I am a jazzer, and looking to incorporate melodic minor into my playing. I am having a hard time because it doesn't sound very, well...melodic to me. I'm looking for ways to incorporate it in walking lines and solos with the standards. Any help would be greatly appreciated. Thanks in advance. Play on!
It is worth putting a little historical context around this.
In the beginning,
The Minor Scale was the
Natural Minor scale: Tonic, major 2nd, Minor 3rd, Perfect 4th, Perfect 5th, Minor 6th, Minor 7th. In A, the notes are A, B, C, D, E, F, G (which you might recognise as the Aeolian mode). The relationship between the minor and major keys was established based on the 6th note of the major scale - so A minor became Relative Minor to C Major, and adopted the same key signature.
Not long after the dawn of time as counterpoint, polyphony and common practice functional harmony developed, a convention was established which meant that every key must have a
'Leading tone'. In other words, the last note of the scale must be a semi-tone below the tonic. So, in A minor, G became G# and
Harmonic Minor was born. The reasons for this are quite solid - raising the leading tone in the key changes the dominant chord from minor to major -
v becomes
V, which in turn preserves the internal mechanics of the cadences, in particular the perfect cadence V - i that were so important in the functional harmory of the music of the time, hence the name
Harmonic minor.
Around the same time, folks realised that the harmonic minor scale was difficult to sing due to the
Augmented 2nd between the 6th and newly-raised 7th degrees (F > G#). In order to alleviate the pain and suffering of the singers the gap was closed by raising the 6th and, because singers tend to sing melodies, the
Melodic Minor was born. Within the classical domain, melodic minor retains identity with Natural Minor/Aeolian Mode when descending - the accidentals are only used when ascending. This is generally not the case in contemporary/jazz domains.
Interestingly, throughout all of this, the
Key Signatures were never modified - A minor continued with to share its signature with C Major. So the modified notes were, by convention, notated with
Accidentals.
But even more interesting, and perhaps of more practical value to the improviser, is that both the minor and major 6th and 7th intervals are considered diatonic within the minor key, so really there is no need to lose much sleep over which minor scale you are playing - in the final reckoning they are all just
'minor'.
YMMV