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Learn keys for electronic music · Section 3 of 12

Scales as safe zones

A scale is a set of notes that sit well together. Pick one, stay inside it, and you can improvise without hitting a sour note. This section uses scales that live on easy-to-find keys, so you can think about rhythm and phrasing instead of hunting for notes.

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3.1 The minor pentatonic you already know

If you have played guitar solos you know the minor pentatonic box. In A minor it is five notes: A, C, D, E and G. On keys, all five are white keys.

Find an A: it is the white key between the second and third black keys of the group of three. From there go up A, C, D, E, G and back to A. The gaps are 3, 2, 2, 3 and 2 semitones, the same fret spacing as the guitar box.

Every note in this scale sits well over an A bass or an A minor chord, which makes it the safest place to start improvising.

Exercises

3.2 The black keys are a scale

The five black keys on their own form the same pentatonic shape, a semitone lower: E flat minor pentatonic (E flat, G flat, A flat, B flat, D flat). Start on the second black key of the pair and the gaps are 3, 2, 2, 3, 2 again.

Black keys are raised and grouped, so you can find them by touch and slide between them with the side of a finger. They suit quick runs and grace notes on a lead.

Treat G flat as home instead and the same five keys become G flat major pentatonic, which sounds brighter.

Exercises

3.3 Natural minor and the thumb tuck

Natural minor in A is every white key from A to A: A, B, C, D, E, F, G. It adds B and F to the pentatonic.

Those two need more care. F over an A bass sounds tense, so move it down to E. B sounds unfinished and pulls towards C or back to A.

Seven notes need more than five fingers, so the thumb tucks under the hand halfway up. Keep the wrist level and let the thumb travel under the palm while finger 3 holds its key.

Exercises

3.4 Dorian: same keys, brighter minor

Keep to the white keys but treat D as home: D, E, F, G, A, B, C. This is D Dorian.

Compared with D natural minor, which has B flat, Dorian has B natural: a major sixth above the root. That one note keeps the minor sound but makes it lighter. It turns up a lot in melancholic house chords and warm pads.

To hear it, play over a D bass and lean on B, resolving it to A or up to C.

Exercises

3.5 Stay in A minor, transpose the sound

You don’t need to learn every key to write in every key. Play in A minor on the white keys, or on the black keys, then move the result with clip Transpose in Live, the track’s Pitch device, or the synth’s transpose setting.

A minor and C major use exactly the same notes. So do E flat minor and G flat major. What changes is which note feels like home.

To work out the transpose amount, count semitones from your home note to the track’s key. Going down is often shorter: A to F is down 4.

Exercises

← Fingers and time All sections Every key, part 1: the black-key ladder →

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