akousia

Non-Chord Tones

A non-chord tone is a melody note that does not belong to the harmony sounding at that moment. Identify it by asking how it arrives, where it falls in the metre and how it leaves.

  • 3 questions
  • 7 common types
  • tension explained through motion

Where you run into this

  • Classical
  • Jazz
  • Pop
  • Choral music
Play the scalemajor
C4C5

Ask three questions

1. Does the note arrive by step, leap or preparation from the previous harmony?
2. Does it occur on a strong or weak part of the beat?
3. Does it leave by step or leap, and in which direction?

The same pitch can receive a different label when its route or metric position changes.

The main types

TypeApproachDepartureTypical placement
passing tonestepstep, same directionoften weak
neighbor tonestepstep, opposite directionoften weak
suspensionsame note heldstep downstrong
retardationsame note heldstep upstrong
anticipationstep or leapsame pitch repeated in next chordoften weak
appoggiaturaleapstep, usually oppositestrong
escape tonestepleap, opposite directionoften weak

These are descriptions of voice leading. They do not prescribe one emotional meaning.

Passing and neighbor tones

Over C major, connect C and E with D: C-D-E. D is a passing tone because it fills the stepwise route between two chord tones.

Now play E-F-E over C major. F is an upper neighbor because it steps away from E and returns to E.

Move either D or F onto a strong beat and hold it longer. The dissonance becomes more prominent even though the pitch sequence remains similar.

Suspensions need preparation

A suspension has three stages:

  • preparation: the note is consonant in the first chord
  • suspension: the harmony changes while the note stays
  • resolution: the held note moves by step, traditionally downward

Hold C while the bass changes from F to G. C belongs to F major, then becomes a fourth above G. Resolve C to B and the G harmony becomes clearer.

A sus4 chord symbol describes a chord structure. A suspension describes motion across time. Gsus4 can appear without a prepared C, while a true suspension must be tied or repeated from the previous harmony.

Appoggiatura and escape tone

An appoggiatura leaps into a non-chord tone on a strong beat and resolves by step. Its accented arrival makes the dissonance structural.

An escape tone does the reverse: it approaches by step, usually on a weak position, then leaps away. Write E-F-C over C major to hear F leave by leap.

Analyze before naming

Mark the chord tones first. Then circle every remaining melody note and draw arrows showing its approach and departure.

Do not classify a note from the scale alone. D belongs to C major, yet it is still a non-chord tone over a plain C triad unless the harmony treats it as an added ninth.

Decorate one arpeggio

  1. Write C-E-G-Eone chord tone per beat over C major.
  2. Add passing Dplace it between C and E.
  3. Add neighbor Fuse E-F-E.
  4. Tie G across an F-to-C changeidentify its role in both chords.
  5. Remove every decorationcompare contour and rhythm with the original.

Keep going

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