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What is the different between a Scale and a Mode? • Updated: 10 Jan 2022
The term scale and mode are used interchangeably, and in a strict theory sense, there is a big difference between a scale and a mode or modal scale. They are NOT the same, even if they are the same notes. A scale and mode can contain the same notes.

Six Essential Scales for `Ukulele • Updated: 09 Nov 2021
The six essential scales are: Blues Major Pentatonic Mixolydian Dorian Aeolian and Ionian From the six essential scales, you can get through a wide variety of traditional and contemporary music. A scale is simply a collection of pitches or notes, not really a "this is a Jazz scale", "this is a Blues" or "this is a Rock scale". It's how a scale is used that really matters not its name.

Secondary Dominant V of ... • Updated: 24 Nov 2021
A "Secondary Dominant" chord is defined as any seventh chord built on a scale root that is diatonic to the key that resolves up a perfect fourth or down a perfect fifth to a full diatonic chord. These chords function as a dominant (V) chord to the next chord, serving to temporarily tonicize the following chord.

Tetrachords: Lydian (1 2 3 #4) • Updated: 12 Jan 2014
Traditionally, a tetrachord is a series of four tones filling in the interval of a perfect fourth. In modern usage a tetrachord is any four-note segment of a scale or tone row including the augmented fourth (+4). The term tetrachord derives from ancient Greek music theory, it literally means four strings.

Tetrachords: Major (1 2 3 4) • Updated: 13 Feb 2020
Traditionally, a tetrachord is a series of four tones filling in the interval of a perfect fourth. In modern usage a tetrachord is any four-note segment of a scale or tone row including the augmented fourth (+4). The term tetrachord derives from ancient Greek music theory, it literally means four strings.

Six Essential Scales - Aeolian/Natural Minor QuickStart Scale Shapes • Updated: 07 Feb 2013
QuickStart scale shapes summary for "Aeolian/Natural Minor", one of the six essential scales that every ukulele player should know. The scale formula for this scale, based on the major scale is: 1 2 b3 4 5 b6 b7 8´.