7/14/2023 0 Comments Black keys![]() I notice that when I'm doodling on them, no matter what note I start with it often likes to come to rest on G♭ that seems to be a tonic note. In other words it's common to play something like a Gb major pentatonic melody while accompanying it with basic chords like I IV V from Gb major. But it's very common to accompany a pentatonic melody with the full chords. The pentatonic scale doesn't include the tones to make complete triads for chord IV or V - in Gb major the Cb and Db chords. In Gb the two chords are Gb major and Eb minor, or the I and vi chords. In terms of harmony the tonic major chord and its relative minor can be played with complete triads using the tones of a pentatonic scale, and those tow chords can be thought of as the fundamental harmonies of pentatonic music. (Do the same sustain pedal trick with other scales and by comparison those other scales will probably sound noisy and dissonant.) If you have ever held down the sustain pedal, noodled on a pentatonic scale, and though all the sustained tones sound nice, you're hearing this consonant aspect of the pentatonic scale. Their absence means pentatonic scales are comparatively consonant to other scales. Both intervals are traditionally considered very dissonant. Similarly there are no half steps so can't have minor seconds either. The result is the dissonant interval of the tritone doesn't exist in pentatonic scales. In other words it is Gb Bb Db - a major triad tonic chord - plus an Ab above Gb and an Eb above the Db.Ĭompared to a major scale the major pentatonic scale lacks the tones FA and TI. It depends how you work the melody, but lots of pentatonic melodies "work" because the scale can be thought of as outlining a tonic chord with two auxiliary notes, one a whole step above the tonic and another a whole step above the fifth. ![]() You are centering it around G flat, so it's specifically a major pentatonic scale.
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