Learn keys for electronic music · Section 4 of 12
Every key, part 1: the black-key ladder
Twelve minor keys look like twelve things to memorise. They are one pattern: each key is the white keys with some swapped for black ones, and the swaps follow a fixed order. This section explains the order, then covers the keys with one or two black keys (E, D, B and G minor) and drills them until you can find them without looking anything up.
Start this section in the interactive course
4.1 A key is a set of black keys
A minor uses only white keys. Every other minor key keeps the same gaps between notes (2, 1, 2, 2, 1, 2, 2 semitones) but starts somewhere else, so some white keys have to be swapped for a neighbouring black key to keep the gaps right.
That makes the useful question for any key: which black keys does it use? Everything else is white keys.
The keys form a ladder from A minor. Going up seven semitones gives the next sharp key and adds one sharp: E minor, then B, F♯, C♯, G♯. Going up five semitones gives the next flat key and adds one flat: D minor, then G, C, F, B♭, E♭.
The order the black keys join in is easy to see on the keyboard. Sharp keys fill the black keys from the left of each group: F♯, then C♯, then G♯, D♯, A♯. Flat keys fill them from the right: B♭, then E♭, then A♭, D♭, G♭.
- Every minor key shares its notes with the major key three semitones above it: A minor with C major, B minor with D major. If a scale menu only lists major keys, pick that one.
- Live 12 can highlight a clip’s scale in the MIDI editor, and Push’s in-key layout only puts scale notes on the pads. Both are useful to check yourself, but the aim here is to know it without them.
Exercises
4.2 One black key: E minor and D minor
E minor: E F♯ G A B C D. White keys from E, with F swapped for F♯, the left black key of the group of three. Over an E bass, F sounds sour and F♯ fits.
D minor: D E F G A B♭ C. White keys from D, with B swapped for B♭, the right black key of the group of three.
Compare D minor with D Dorian from section 3, which keeps B natural. That one note is the difference between the two.
Each new black key follows a rule. On the sharp side it sits a whole tone above the new home note (E, then F♯). On the flat side it is the sixth note of the new key (D minor’s sixth note is B♭).
- E minor, right hand: E 1, F♯ 2, G 3, A 1, B 2, C 3, D 4, E 5.
- E minor, left hand: E 5, F♯ 4, G 3, A 2, B 1, C 3, D 2, E 1.
- D minor, right hand: D 1, E 2, F 3, G 1, A 2, B♭ 3, C 4, D 5.
- D minor, left hand: D 5, E 4, F 3, G 2, A 1, B♭ 3, C 2, D 1.
Exercises
- E minor: all seven notes: Play all seven notes of E minor in any order and octave. Touching a note outside the key counts as a slip.
- E minor, up and down: Root to root and back with the fingering shown.
- E minor, left hand: The same scale an octave lower with the left hand: 5 on E, thumb on B, then 3 crosses over to C.
- D minor: all seven notes: Same again for D minor.
- D minor, up and down: Root to root and back. Finger 3 lands on B♭ going up.
- E minor over a downtempo loop: Eight bars over a slow broken beat with the whole scale lit. Play F♯ often and listen to how it sits against the chords.
- D minor, home notes only: Eight bars with only the D keys lit, so you find the other notes yourself.
4.3 Two black keys: B minor and G minor
B minor: B C♯ D E F♯ G A. E minor’s F♯ stays and C♯ joins, a whole tone above B. Both are the left black key of their group: one in the pair, one in the three.
G minor: G A B♭ C D E♭ F. D minor’s B♭ stays and E♭ joins, the sixth note of G minor. Both are the right black key of their group.
Under the hand, B minor puts finger 2 on C♯ straight after the thumb on B, then the thumb on E and finger 2 on F♯. It’s the same shape twice, one group along.
G minor is the mirror: finger 3 on B♭ and finger 3 again on E♭.
- B minor, right hand: B 1, C♯ 2, D 3, E 1, F♯ 2, G 3, A 4, B 5.
- B minor, left hand: B 4, C♯ 3, D 2, E 1, F♯ 4, G 3, A 2, B 1.
- G minor, right hand: G 1, A 2, B♭ 3, C 1, D 2, E♭ 3, F 4, G 5.
- G minor, left hand: G 5, A 4, B♭ 3, C 2, D 1, E♭ 3, F 2, G 1.
Exercises
- B minor: all seven notes: Every note of B minor, any order. No wrong notes allowed this time.
- B minor, up and down: Root to root and back with the fingering shown.
- B minor in time: One note per click after the count-in.
- G minor: all seven notes: Every note of G minor, any order, no wrong notes.
- G minor, up and down: Root to root and back.
- B minor, left hand: Left hand, starting on finger 4: 4 3 2 1, then 4 crosses over the thumb onto F♯.
- B minor by feel: The same scale with no lights and no names. B is the white key just left of the pair of black keys.
- B minor over a deep house loop: Eight bars, scale lit. Try short phrases that end on B or F♯.
- G minor with the lights off: Eight bars, nothing lit. The scale shows again when you finish.
4.4 Finding home fast
Before improvising in a key, find three notes: home, the minor third (3 semitones up) and the fifth (7 semitones up). Together they make the key’s minor chord, and they’re the safest notes to land on.
Ending a phrase on home sounds finished. Ending on the fifth leaves it open, so the next phrase sounds like an answer.
Pentatonic works in any key: take the scale and drop its second and sixth notes. B minor pentatonic is B D E F♯ A. The two dropped notes are the ones most likely to clash with a chord, which is why the pentatonic is the safe version.
- In a project, find home by playing along with the bass. When your note and the bass blend into one sound, that’s home.
Exercises
- Minor chord flash: A key appears. Play its minor chord: home, third and fifth, any order and octave. Three wrong notes lights the answer.
- Pentatonic flash: A key appears. Play its minor pentatonic from home up to home.
4.5 Key flash
These drills give you a random key from this section with nothing lit. Speed comes from knowing each key’s black keys, so the first drill asks for only those.
Aim for under four seconds a key. Most of that time is spent remembering the key rather than finding the notes, and remembering gets quicker with practice.
Exercises
- Black keys by key: Play the black keys that belong to the key shown, any order.
- Scale flash: Play the full scale of the key shown, home to home.
- Random key, home notes lit: A key from this section is picked when you press Start. Only its home notes are lit.
← Scales as safe zones All sections Every key, part 2: busy keys and any key →
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