Rock Guitar Scales are the collection of notes used when playing a guitar progression. There are different kinds of scales, which are being used in different songs. The most common guitar scale is the Chromatic or the Major, other types include the natural minor, harmonic minor, and the melodic minor.
The very first to learn is of course the Chromatic scale, which is the series of 12 notes starting from any note. It shows what notes are in the fret board and it makes remembering the fret notes easy.
The chromatic scale for C for example is C C# D D# E F F# G G# A A# B C. You might notice that every note has a sharp or flat between the succeeding note except for E and B. to make this easy the chromatic is just the scale of a note and you'll go one step higher each time until you reach the octave of the same note you've started.
Next to learn is the most important one, which is the Major scale. It is the basis of all the things needed to play the guitar. Most chords are derived and constructed from this. An example of a Major scale is the C major which is basically all the chord notes without flats and sharps. C D E F G A B C is the major of C note.
Another type of scale created the Natural Minor. Its sounds fit well on rock acts for its deep darker tone.
The natural minor or the "minor" has a lowered 3rd note and so as its 6th ad 7th note.
Another minor is the Harmonic, which is commonly found in classical music. Most instrumental shredders use this scale because of its eastern vibe.
The harmonic is the same as the natural minor instead the lowered 7 (b7) is reset to a major 7. Last of the minor scales is the melodic minor, which is rarely used, but it also gives that jazzy vibe. The melodic minor is composed of two scales, the ascending and descending. The ascending melodic minor formula is the same as the major, but with a lowered 3rd note, while the descending melodic minor is also the same as the natural minor.
There is also what we called modes or an alternation of major. These are also another formula to play the guitar scales. Examples of this is the Ionian, which is the major; the Dorian, which has a lowered 3rd and 7th note and is ideal for jazz music; the Phrygian, which has a lowered 2 3 6 and 7th note; the Lydian, which has a sharp 4th note; the Mixolydian, which has a lowered 7th note and the same as melodic minor scale; the Aeolian which is the same as the Natural minor scale; and the Locrian a Diminished with lowered 2nd, 3rd , 5th, 6th, and 7th note.
