Questions: Non-Harmonic Tones: Passing Tones and Embellishments

Question 1

A student analyzing a Bach chorale sees a melody note D on a weak beat, surrounded by C on the preceding beat and E on the following beat, against an underlying C major chord (C–E–G). The student labels the harmony at that moment as a ii7 chord to account for the D. What error has the student made?

• A. D is diatonic to C major, so it must be a chord tone of whatever chord is present
• B. The student treated a passing tone as a chord tone, producing an incorrect harmonic analysis
• C. The student correctly identified the D — passing tones that are diatonic always change the harmony
• D. The student should have labeled it a suspension rather than a passing tone

Answer: (B)

The D fills in stepwise motion from C to E, falls on a weak beat, and connects two chord tones of the C major chord — it is a passing tone. Passing tones belong to the melodic surface, not the harmonic structure. When a melody note doesn't fit the underlying chord, the correct analytical move is to identify it as a non-harmonic tone, not to reanalyze the chord to include it. Reanalyzing the chord produces cascading errors in Roman numeral analysis. This is the most consequential practical skill non-harmonic tones teach.

Question 2

Which of the following best defines a suspension?

• A. A non-harmonic note approached by leap and resolved by step, creating an accented dissonance
• B. A chord tone from the previous harmony held into the next beat where the harmony has changed, creating a dissonance that resolves down by step
• C. A note that fills in stepwise motion between two chord tones on weak beats
• D. A non-harmonic note that briefly departs from a chord tone by a step and returns to it

Answer: (B)

A suspension has three parts: preparation (the note as a chord tone in the previous harmony), suspension (the note held into the next harmony, where it becomes dissonant), and resolution (the note moving down by step to the new chord tone). The dissonance falls on a strong beat, which is what makes suspensions so expressive — the resolution feels earned. Option A describes an appoggiatura. Option C describes a passing tone. Option D describes a neighboring tone.

Question 3

Passing tones change the underlying harmony of the passage where they occur.

• T. True
• F. False

Answer: False

Passing tones are melodic ornaments that animate the surface of the music without altering the harmonic structure. They occur 'against' the harmony — creating brief dissonance — but their resolution is built in (the next chord tone completes the stepwise motion), and they do not define new chords. The underlying harmony remains whatever chord the strong beats establish. Understanding this is what allows you to keep harmonic analysis clean: non-harmonic tones are surface events, not harmonic events.

Question 4

The appoggiatura typically creates more expressive tension than a passing tone because it falls on a strong beat and is approached by leap.

• T. True
• F. False

Answer: True

An appoggiatura 'leans' into a chord tone from a step away (approached by leap, resolved by step), landing on a strong beat where the dissonance is maximally exposed. This rhythmic weight — dissonance on the strong beat rather than on the weak beat — is what gives the appoggiatura its characteristic yearning intensity. The passing tone, by contrast, occurs on a weak beat and is 'in transit' rather than landing, giving it a smoother, less emotionally loaded feel.

Question 5

Why is it important to distinguish non-harmonic tones from chord tones when doing harmonic analysis? What error results from treating every melody note as belonging to the underlying chord?

Model answer: Non-harmonic tones belong to the melodic surface, not the harmonic structure. If you treat every melody note as a chord tone, you produce incorrect chord identifications — trying to find a chord that includes the non-harmonic note forces you to postulate harmonies that aren't really there. The correct approach is to identify which notes are structural (defining the harmony) and which are ornamental (animating the melody around it). This distinction gives you a cleaner picture of the underlying harmonic progression.

The practical consequence is that misidentifying a passing tone as a chord tone can cascade: if you decide that the D between C and E is a chord tone, you might label the chord ii7, which then seems to resolve incorrectly to whatever follows. The actual harmony is C major throughout that beat, and the D is just decoration. Non-harmonic tone analysis is what separates a surface-level note-counting approach from genuine harmonic understanding.