We recommend knowing first
The problem it solves
A melody that only repeats the chord tones turns static and flat. The neighbour tone gives you a simple way to ornament a note without changing where the line is going.
Detailed theory
Key idea
The neighbour tone leaves a chord tone by step (a tone or a semitone) and returns immediately to the same note.
It can be upper (a step above: C-D-C) or lower (a step below: C-B-C).
Understand it
A neighbour tone is a non-chord tone that decorates a single chord tone. It starts on a stable note, moves one step up or down to a note that is not part of the chord, and then returns to the starting note. The arrival point is always the same as the departure.
There are two kinds: the upper neighbour goes up a step and returns (C-D-C), and the lower neighbour goes down a step and returns (C-B-C). In both cases the middle note is the neighbour, a momentary passing note that is not part of the harmony.
The key contrast is with the passing tone: a passing tone connects two DIFFERENT chord tones moving in a single direction (C-D-E), whereas the neighbour tone leaves a chord tone and RETURNS to it, going nowhere (C-D-C).
An analogy: it is like stepping off the stone you are on and right back onto the same spot; a little wobble that ornaments the note without making you move forward.
Staff & keyboard
Loading audio…
Lower neighbour: C-B-C. Now the middle note (B) steps out below and returns to the C. Same mechanism, opposite direction.
How to recognise it
How it's written
Look for three stepwise notes in a row where the first and third are identical and the middle one steps out: if that middle note does not belong to the current chord, it is a neighbour tone.
How it feels
It sounds like a small wobble that comes back home: the neighbour creates a very brief micro-tension that resolves at once as it returns to the starting note.
Common mistake
Confusing the neighbour tone with the passing tone: the neighbour returns to the SAME note (C-D-C), the passing tone goes to a DIFFERENT one (C-D-E).
Choosing the neighbour by thinking only of the scale without checking which chord is sounding: the middle note must be a note outside the current chord.
Try it
Over a C major chord, play C-D-C: the D is the upper neighbour that decorates the C and returns to it.
Now try the lower neighbour: C-B-C; the B steps out a step below and returns to the C.
On the instrument
Staff & keyboard
Loading audio…
Upper neighbour over a C chord: C-D-C. The D steps out above the C, decorates it and returns. The middle note does not belong to the chord.
Where it's used
- Ornamenting a melody
- Decorating a sustained note with an upper or lower neighbour so the line breathes without changing direction.
- Telling it from the passing tone
- Recognising whether a non-chord note returns to the starting note (neighbour) or continues to a different one (passing).
Examples
Staff & keyboard
Loading audio…
A chord tone of C (the E) ornamented with the upper neighbour: E-F-E. The F decorates the E and returns; the line does not advance, it just breathes.
Prepares you for
Exercises
Hear the neighbour tones
Recognise the neighbour tones in context.
Complete 10 attempts · 70% accuracy to pass
Mini test
Check that you've got it.
0/6 answeredQuestion 1/6
What is a neighbour tone (auxiliary note)?