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Week 14 · Chapter

Week 14 — Chapter · Melody and Non-Chord Tones

Music Theory I · MUS 156 Fictional sample

Course: MUS 156 Music Theory I · Kenosis College
Instructor: Professor Hemsworth
Unit: Learning Unit 14 of 16 (Week 14) · two sessions per week
The unit's primary reading · ~30–40 minutes · SLOs 6 and 7 · Read this before the first session if you can, or right after — everything else in the module builds on it.

The plain version and the real version

Run this experiment tonight. Find a recording of a singer you love singing a song you know — then play the same melody yourself the way a beginner's songbook would print it: chord tones only, right on the beat, nothing extra. Both versions are "correct." Only one is music you'd play for someone.

Now listen closer. The singer slides through notes that aren't in the chord on her way between notes that are. She lands on a note before the chord arrives. She holds a note after the chord has moved on, lets it ache, then lets it fall. None of it sounds like a mistake. Your ear has been filing those notes under style your whole listening life.

Here's this week's news: they aren't just style. They're a small, learnable family — six moves, each with a name, an entrance rule, and an exit rule. Musicians call them non-chord tones, and naming them opens two doors at once: you can analyze what your favorite melodies do at their most devastating moments, and you can add the same moves to your own lines on purpose — without breaking last week's two-voice frame.

By the end of this chapter you will be able to: describe a melody's contour and find its climax; tell steps from leaps and say what a leap owes the line; label all six non-chord tones — passing tone, neighbor tone, suspension, anticipation, escape tone, appoggiatura; write a suspension's figure with the hyphen (4-3, 7-6, 9-8) and explain why inversion figures keep their slashes; dodge the augmented-second trap in minor; and embellish a two-voice frame so it still passes the voice-leading check.

Where we are

Unit 12 taught you where phrases land. Unit 13 taught you to write two honest, independent voices — the frame. This unit is that discipline's payoff: because the frame is solid, you can hang notes on it. Embellishment only works over something correct — decorate a broken frame and you get expensive-sounding mud. One more unit, and everything converges on the chart.

Melody has a shape

Before the six names, three ideas about melody itself — all things your hand already knows.

Contour. Play any tune you love and trace its shape in the air. That drawn line — the rises, falls, and arch — is the melody's contour. Most memorable melodies arch: start low, build, crest, come home. Danny Boy keeps reaching upward, saving its highest note for the emotional peak of the text, then settles. The shape is the storytelling.

Climax. The contour's single highest point of intensity — usually the highest note, arriving once. That once matters: hit the peak three times and none of them is a peak. When you learn a song, find its climax first; everything before it is approach, everything after is descent, and knowing that is half of interpretation.

Steps and leaps — and what a leap owes. A step is a second, major or minor: C4 to D4, E4 to F4. A leap is a third or more. Melodies walk on steps and gesture with leaps — and in a line (a harmony vocal, a countermelody, a standalone bass line), a leap creates a small debt: the line usually turns around and steps back the opposite way. Solos can leap freely — that's idiom. Lines that stack unresolved leaps stop being singable, and your own voice will tell you so faster than any rule.

Here's a plain melody doing everything this section describes:

KEY: C major    METER: 4/4    CLEF: treble
| C4/q D4/q E4/q F4/q | G4/h A4/q G4/q | E4/h D4/h | C4/w |

Four bars in C major: the line walks up by step from C4 to F4, arrives on G4, touches its single high point A4, and steps back down; then it leaps down a third from G4 to E4 — and immediately pays the leap back with a step down to D4 — before settling on C4. An arch, one climax, one leap, one polite repayment.

Misconception check. "A leap anywhere is fine if it sounds cool." In a solo — yes, go with God. In a line, a leap is a promise to turn around. The distinction isn't stylistic snobbery: stack three unresolved leaps in a harmony vocal and try to sing it. The rule is just singability, written down.

The in-between family: what a non-chord tone is

A non-chord tone (NCT) is a note that does not belong to the chord sounding beneath it, added on purpose, with a lawful way in and a lawful way out. That last clause is the whole difference between an NCT and a wrong note: a wrong note has no exit plan. Every family member is defined by its entrance and exit — so you can identify any of them with two questions: how did it arrive? and how did it leave?

Six names, three pairs:

  • Two fillers: passing tone, neighbor tone — the workhorses, moving by step.
  • Two timing moves: suspension, anticipation — one arrives late, one arrives early.
  • Two gesture moves: escape tone, appoggiatura — defined by a step one way and a leap the other.

Passing tones and neighbor tones

Start from a frame like the ones you wrote last week — two voices, note against note, every check passing:

KEY: C major    METER: 4/4    CLEF: grand
U: | E4/h G4/h | F4/h E4/h | D4/h D4/h | C4/w |
L: | C3/h B2/h | A2/h C3/h | F2/h G2/h | C3/w |

A four-bar frame in C major. The upper voice arches from E4 up to G4 and walks home to C4; the lower voice strides from C3 down through B2 and A2, back up, down to F2, up to G2, and home to C3. The two voices meet in tenths and thirteenths nearly the whole way — a fifth and then an octave only at the final close — with contrary motion at the cadence. It passes every unit-13 check.

Now the same frame with a melody moving through it:

KEY: C major    METER: 4/4    CLEF: grand
U: | E4/q F4/q G4/h | F4/q G4/q F4/q E4/q | D4/h D4/q C4/q | C4/w |
L: | C3/h B2/h | A2/h C3/h | F2/h G2/h | C3/w |

The identical frame, embellished in the upper voice only. Bar 1: the third from E4 up to G4 is now walked — E4, F4, G4 — with the F4 landing on the offbeat. Bar 2: the F4 steps up to G4 and steps right back down. Bar 3: the voice repeats its D4, then slips onto C4 one beat early, before the final bar makes it official. The lower voice is untouched, and the frame still passes the voice-leading check.

Two of those three added notes get named now:

Passing tone (PT). Approached by step, left by step, in the same direction — a stair between two chord tones a third apart. Bar 1's F4 is the textbook case: E4 (chord tone), F4 (passing), G4 (chord tone). The F4 over the C3 bass makes a fourth — technically a dissonance — but it's moving, it's off the beat, and it's gone before the frame notices.

Neighbor tone (NT). Approached by step, left by step, turning back where it came from — a decoration of one chord tone. Bar 2's G4 steps above the F4 and returns: an upper neighbor. Step below and return and it's a lower neighbor. Where the passing tone travels, the neighbor visits.

Misconception check. "Non-chord tones are mistakes that happened to work out." They're the oldest deliberate craft in melody. Every NCT is approached by rule and left by rule — that's what makes it grammar instead of noise. Play the embellished bar 1, then the plain one. Nobody prefers the plain one; nobody calls the F4 an error. Intent plus exit plan equals style.

The suspension: hold, lean, release

Now the most expressive member of the family — and the one that finally explains a promise this course made back in unit 10.

You have sung a suspension — held a note while the chords moved underneath, felt it pull, let it fall one step. It has three phases, always:

  1. Preparation. The note starts life as a legal chord tone — consonant, unremarkable.
  2. Suspension. The harmony moves; the note stays. Now it's dissonant against the new chord — the lean. This usually lands on the strong beat, which is exactly why it aches.
  3. Resolution. The held note falls down by step onto a chord tone — the release.
KEY: C major    METER: 4/4    CLEF: grand
U: | A3/h F4/h~ | F4/h E4/h |
L: | F3/h D3/h | C3/h C3/h |

Two bars in C major. The upper voice rises to F4 over a D3 bass — a comfortable tenth: the preparation. The tie holds the F4 across the barline while the bass moves to C3: now the F4 sounds a fourth above the bass — the suspension, leaning hard on the downbeat. Then it falls one step to E4, a third above that same bass: the resolution. A fourth becoming a third over one bass note.

The figure — and the one legitimate hyphen in this course. That event is written 4-3: the interval above the bass at the lean, then the interval at the release; the hyphen means "becomes." Here, finally, is why inversion figures have taken slashes since unit 10: slashes stack, hyphens move. A slash figure like 6/4 or 4/3 names intervals sounding at the same time — a chord shape. A hyphen figure like 4-3 names one interval turning into another in time — an event over a single bass note. V4/3 is a chord you can strike; 4-3 is a small drama in three acts. Two symbols, two meanings, zero overlap.

The suspension family has three common members, one per shelf:

  • 4-3 — a fourth above the bass resolving to a third (the one you just saw).
  • 7-6 — a seventh resolving to a sixth.
  • 9-8 — a ninth resolving to an octave.

Here's the 7-6, same drama on a different shelf:

KEY: C major    METER: 4/4    CLEF: grand
U: | C4/h C4/h~ | C4/h B3/h |
L: | E3/h E3/h | D3/h D3/h |

Two bars: the upper voice's C4 is a comfortable sixth above the E3 bass — prepared — and holds while the bass steps down to D3, becoming a seventh: the lean. It resolves down by step to B3, a sixth above the same bass: 7-6. (A 9-8 works identically: a ninth above the bass — say G4 held over an F3 bass — falling to the octave F4. You'll write one in this week's assignment.)

Misconception check. "A suspension is just holding any note." All three phases or it isn't one. Hold a chord tone while the chord stays put: that's a long note. Land on a dissonance by leap with no preparation: that's an appoggiatura (two sections from now). The preparation is what makes the lean tragic — the note was legal, and then the ground moved.

The anticipation: arriving early

Flip the suspension in time and you get the anticipation (ANT): instead of holding the old note after the chord changes, the melody arrives on the next chord's note before the change — briefly dissonant against the chord that's still sounding, then vindicated when the harmony catches up. You saw one in the embellished frame: bar 3's upper voice slipped onto C4 one beat before the final C-major bar arrived — do, sounding early against the G2 bass, then simply staying as the last chord confirmed it.

If the suspension can't let go of the past, the anticipation can't wait for the future. Gospel and country vocalists live on this move — the landing that arrives a half-beat ahead of the band. It's usually approached by step and left by not moving at all: the note repeats (or ties) into its own chord.

The 2×2: escape tones and appoggiaturas

The last two family members are defined entirely by geometry — how you get in (step or leap) and how you get out (step or leap):

The grid below is the whole lesson; the two bold cells are the new names.

Left by step Left by leap
Approached by step passing tone (same direction) · neighbor tone (turns back) escape tone (ET)
Approached by leap appoggiatura (APP) — (leap-in, leap-out doesn't behave like a line; not in this course's music)

Escape tone (ET): approached by step, left by leap, usually in opposite directions — step up, slip off with a leap down, typically unaccented. It's the little tail a melody flicks as it leaves a phrase.

Appoggiatura (APP): approached by leap, left by step — the melody jumps onto the dissonance, usually right on the beat, leans (the name is Italian for "to lean"), and settles down by step. The torch-song note; the string section's favorite ache.

KEY: C major    METER: 4/4    CLEF: treble
| E4/q F4/q D4/h | C4/q F4/q E4/h |

Two bars, same F4, two different jobs. Bar 1: E4 steps up to F4, which leaps down to D4 — an escape tone, slipping away. Bar 2: C4 leaps up a fourth to F4, which settles by step onto E4 — an appoggiatura, leaning in. Entrance and exit are the whole difference, and your ear already hears it: the first F4 evaporates; the second one lands.

Misconception check. "The escape/appoggiatura distinction is arbitrary." The approach and exit define them — they're opposite gestures. Step-in-leap-out slips away; leap-in-step-out leans in. Ask any singer to perform each and watch their body do two different things. The 2×2 grid isn't vocabulary trivia; it's the four possible exits from a dissonance, each with its own sound and its own use.

The augmented-second trap (unit 5 calls it in)

One hazard hides inside minor keys, and it fires this week, because this is the week you write melodies.

Harmonic minor raises ^7 so the dominant works — unit 11's whole engine. But that leaves a gap between ^6 and ^7 of three half steps written as a second: in A minor, F4 up to G♯4 — an augmented second. It sounds like a minor third (F4 to A♭4 is the same width on the keyboard), but it's spelled as a second, and as a melodic move in a line it lurches — four centuries of voice teachers and this course's own checker agree.

```music counterexample
KEY: a minor METER: 4/4 CLEF: grand
U: | E4/h F4/h | G#4/h A4/h |
L: | A2/h A2/h | A2/h A2/h |


Two voices in A minor over a held A2: the upper line walks E4, F4 — then lurches from F4 up to G♯4, an augmented second, before landing on A4. This example is deliberately wrong: that F4-to-G♯4 move is the trap itself, and the voice-leading check flags exactly that interval.

The fixes are unit 5 alumni, both of them:

```music
KEY: a minor    METER: 4/4    CLEF: grand
U: | E4/h F#4/h | G#4/h A4/h |
L: | A2/h A2/h | A2/h A2/h |

Fix one: melodic minor — raise ^6 as well, so the line walks E4, F♯4, G♯4, A4: honest major seconds all the way up to do. (That ascending shape is the melodic minor scale, which is the entire reason melodic minor exists.) Fix two, no accidental required: reshape the line — approach ^7 from above (A4 down to G♯4) or let the line descend through natural minor instead, so ^6 never walks straight into ^7. Climbing lines borrow melodic minor; descending lines relax back to natural. Your minor-key fills follow the same law.

Embellishing the frame — without breaking it

Now the discipline that makes all six names usable. Your fill is a guest in the frame's house, and one rule keeps the peace: dissonance travels on the offbeats; the frame owns the beats.

Here's what happens when a fill forgets. A clean two-bar frame:

KEY: C major    METER: 4/4    CLEF: treble
U: | C5/h B4/h | C5/w |
L: | F4/h G4/h | E4/w |

Two voices: the upper steps C5–B4–C5 while the lower walks F4–G4–E4. A fifth, a third, then a sixth; contrary motion; every check passes.

A bandmate adds one note:

```music counterexample
KEY: C major METER: 4/4 CLEF: treble
U: | C5/h D5/q B4/q | C5/w |
L: | F4/h G4/h | E4/w |


The added D5 is a perfectly grammatical escape tone — step in from C5, leap out to B4. But it lands **on beat 3, at the exact moment the bass moves to G4**: now the voices stride from C5-over-F4 to D5-over-G4 — **parallel perfect fifths** the plain frame never contained. The fill broke the frame. (Deliberately wrong, and flagged as such — this is the studio's hunt.)

The repair costs half a beat:

```music
KEY: C major    METER: 4/4    CLEF: treble
U: | C5/q. D5/e B4/h | C5/w |
L: | F4/h G4/h | E4/w |

The same escape tone, moved to the offbeat: dotted quarter, eighth, half — the rhythm still fills the bar exactly. Now the D5 sounds between the frame's handshakes; by the time the bass arrives on G4 at beat 3, the upper voice is already on B4, and the fifths never line up. Same note, same gesture, one half-beat to the left — and the frame checks clean again.

That's the whole method: (1) start from a frame that passes; (2) add NCTs with legal entrances and exits, dissonances on weak beats and offbeats; (3) re-check note-against-note — if a fill created parallels or an augmented second, move it or respell it. Decoration never excuses the skeleton.

Why this makes you a better musician

Everything in this unit converts to Thursday-night currency. Your fills get intentional: the run you already play between chord tones is passing tones — now you can build it in any key on purpose. Your holds get professional: "hold through the change, then fall one step" is a 4-3 suspension you can call to another vocalist by beat number instead of singing it at them until they copy you. Your thefts get precise: when the melody you love does something devastating at its climax, you can name the move — that lean is an appoggiatura, that early landing is an anticipation — file it, and redeploy it in your own bridge. Your repairs get fast: a cluttered countermelody means a fill landed on the beat and picked a fight with the frame, and the cure costs one eighth note. And in minor keys, you'll hear the augmented-second lurch coming and fix it with a single accidental — before the director stops the rehearsal. The studio is all five of these, live: hunt the fills, sing the lean, write your own, and check each other's frames like professionals.

Key terms

  • Contour — a melody's shape in time: its rises, falls, and arches.
  • Climax — the melody's single point of highest intensity, usually its highest note, ideally arriving once.
  • Step — melodic motion by a second (major or minor).
  • Leap — melodic motion by a third or more; in a line, usually answered by a step in the opposite direction.
  • Non-chord tone (NCT) — a note that doesn't belong to the sounding chord, added deliberately, with a lawful approach and exit.
  • Passing tone (PT) — approached by step, left by step in the same direction; fills the gap between chord tones a third apart.
  • Neighbor tone (NT) — approached by step, left by step back the way it came; upper or lower.
  • Suspension (SUS) — a chord tone held while the harmony changes (preparation → suspension → resolution), resolving down by step; figured with the hyphen: 4-3, 7-6, 9-8.
  • Preparation / resolution — the suspension's legal first phase and its downward-step release.
  • Anticipation (ANT) — the next chord's note arriving early, then staying as the harmony catches up.
  • Escape tone (ET) — approached by step, left by leap (usually opposite directions), typically unaccented.
  • Appoggiatura (APP) — approached by leap, left by step, typically accented: the lean.
  • Augmented second — the three-half-step "second" between ^6 and ^7 in harmonic minor; avoided in lines via melodic minor or contrary shape.

Summary

  • Melody has a contour; the best ones arch to a single climax. Steps (seconds) walk; leaps (thirds and up) gesture — and in a line, a leap is answered by a step back the other way.
  • A non-chord tone is deliberate: lawful entrance, lawful exit. Six names, three pairs — fillers (PT step-step-onward, NT step-step-back), timing moves (SUS holds late, ANT arrives early), gesture moves (ET step-in-leap-out, APP leap-in-step-out).
  • The suspension has three phases — preparation, suspension, resolution down by step — and its figures use the course's one legitimate hyphen: 4-3, 7-6, 9-8. Slashes stack (6/4 is a chord); hyphens move (4-3 is an event).
  • In minor, ^6 to ^7 in harmonic minor is an augmented second — a lurch in any line. Fix it with melodic minor (raise ^6 going up) or reshape the line; descending lines relax to natural minor.
  • Embellish a frame that already passes, keep dissonances on offbeats, and re-check after decorating: dissonance travels on the offbeats; the frame owns the beats. A fill placed on the wrong half-beat can create parallel fifths the frame never had — and moving it one eighth note fixes it.

Check your understanding

Work these before peeking — they're ungraded, and worked answers follow at the bottom of the page.

  1. In C major, over a C chord, a melody sings E4–F4–G4, with the F4 off the beat. Name the F4's job, and defend the label with its entrance and exit.
  2. Same key, same chord, the melody sings C4–F4–E4, with the F4 landing on the downbeat. Same note, different label — which, and why?
  3. A choir soprano holds her note while the chords change under her, then falls one step. Name the device, its three phases in order, and the figure if her held note made a fourth above the bass that then became a third.
  4. Your bandmate writes the figure "4/3" under a suspension and "6-4" under a second-inversion triad. Both are wrong. Fix both, and state the rule that sorts them forever.
  5. In A minor, your melody climbs F4 straight to G♯4. Name the interval, say why it's a problem in a line, and give both fixes.

Answers (worked reasoning — read after attempting)

  1. Passing tone. Entrance: by step from E4. Exit: by step to G4, same direction. It fills the third between two chord tones (E and G belong to the C chord; F doesn't), and sitting off the beat keeps its dissonance between the frame's strong-beat handshakes.
  2. Appoggiatura. Entrance: by leap (C4 up a fourth to F4). Exit: by step (down to E4). Leap-in, step-out — the 2×2 grid's lower-left cell — and landing on the downbeat is typical: the appoggiatura leans, then settles. (If it had been approached by step and left by leap, it would be an escape tone.)
  3. A suspension: preparation (her note was a chord tone before the change), suspension (the harmony moved; she held; now it's dissonant — the lean), resolution (down by step — the release). Fourth-becoming-third above the bass is figured 4-3 — hyphen, because the figure describes one interval becoming another over a single bass note.
  4. The suspension is 4-3 (hyphen), and the second-inversion triad is 6/4 (slash). The rule: slashes stack, hyphens move — slash figures name intervals sounding simultaneously (a chord shape); hyphen figures name an interval resolving to another in time (an event). 4/3 with a slash would mean a seventh chord's second inversion, a completely different object.
  5. F4 to G♯4 is an augmented second — three half steps spelled as a second (it sounds like a minor third but isn't one on paper). In a line it lurches; the course's voice-leading check flags it, and singers have always avoided it. Fix one: melodic minor — raise ^6 to F♯4 so the climb is F♯4–G♯4, an ordinary major second. Fix two: reshape — approach G♯4 from above (from A4), or let a descending line revert to natural minor so ^6 never walks into ^7 at all.

Next in this module: the Readings & Resources page if you want other angles on the in-between notes, then Tutorial 14 — your AI tutor session, due before Week 14's second session so the studio's fill hunt can build on it. And note the module's late arrival: the complete final-exam review family opens with the second session too — no study week separates the last unit from the final, so the runway starts now.

~ Professor Hemsworth's edition · Kenosis College · built with thecoursemaker.com