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Grade 7 · Music · 30 minutes

Unit 1 · Form and Arrangement · Lesson 1 of 2

Show Repetition and Contrast in a Rhythm Map

Use a visual score to make a repeated motif and one controlled variation clear to a listener.

Mr. S Teaches · Original starter mini-lesson · MS7-MUS-01 · Elective / rotation; availability varies

Learning objective

Create a three-section rhythm map and present how one marked variation changes a returning motif.

Before you begin

  • Represent four beats using quarter notes, paired eighth notes and rests; recognize ABA form.

Gather your materials

  • Paper
  • Pencil
  • Optional gentle tapping surface

Language to know

Variation
A changed version that preserves a recognizable connection.
Score
A written representation used to guide or communicate music.
Accent
Extra emphasis on a selected sound.
Motif
A short musical idea that can recur.

Understand the concept

Use Q for a one-beat sound, EE for two equal sounds sharing one beat, and R for one beat of silence. A = Q | EE | Q | R; B = R | Q | EE | Q. For A′, keep A’s durations but add an accent on beat 3. The prime mark signals a related variation, not a completely unrelated section. A visual score can highlight what stayed the same and what changed. Unlike simply repeating A, A′ invites a listener to notice a difference while recognizing the returning idea.

Teach it step by step

  1. Write A and B in four equal beat boxes and perform or trace them with a steady pulse.
  2. Create A′ by changing only one feature: accent placement or one subdivision that preserves the four-beat total. Mark the change clearly.
  3. Build a visual map A–B–A′ with a legend. Use a color, underline or symbol that remains readable without color alone.
  4. Present the map while performing or pointing through it. Explain the salient change and ask a listener to locate it using the display.

Make the thinking visible

Worked example or model response

“The third section returns to A’s Q–EE–Q–R rhythm but the star above beat 3 marks an accent. My legend says a star means emphasis. The display clarifies the difference between an exact repeat and a varied return.”

Guided practice

Compare A′ with a proposed version EE | R | EE | Q. Decide how much connection remains to A and explain the evidence rather than counting shared letters only.

Independent practice

Compose A and contrasting B, then make a controlled A′. Present your labeled score and a one-minute explanation of the variation. Include an observable reason for treating the final section as related to A.

Quick assessment

Why is a decorative picture beside the score less useful than a mark attached to the changed beat?

Answer key & assessment criteria

Answers and teaching guidance

  1. Guided: The proposed version keeps the four-beat length but changes several positions and durations; it may be a new motif rather than a clear controlled variation. A defensible answer identifies both common and changed features.
  2. Independent criteria: All sections have consistent beat totals, B contrasts, A′ preserves an explained connection to A, and the presentation actively uses a clear visual legend.
  3. Quick check: A mark attached to the changed beat identifies the specific musical evidence. A decorative picture may add interest but does not necessarily clarify the claim about variation.

Look for: Value precise explanation and legible score organization. Vocal, tapping or silent pointing performances are equally valid.

Make it work for your learner

More support

Provide the example motifs on cards and let the learner select one accent position; use a bold outline instead of color.

Extension challenge

Create two A′ candidates and ask a listener which sounds more like a return. Explain why listener judgment and compositional intention may differ.

Selected contributions · Official sources

Standards connections

Subject-content alignment not yet verified

Supporting Common Core connection

SL.7.5

Common Core · Grade 7

Use an annotated score to clarify a musical claim and emphasize its key detail.

Read the official standard ↗

The score-supported presentation practices a selected visual-display skill, not comprehensive speaking/listening or verified music-content alignment.

Source and mapping checked 2026-11-04. This mini-lesson contributes selected skills; it does not claim full attainment.