Dictation With a Discrepancy
In an aural skills class, students hear a four-bar melody played twice on piano. The melody is in 3/4 and appears to be in A minor. After the first hearing, a student writes the melody starting on A and ending on A, with a raised G-sharp at the cadence. After the second hearing, the same student writes the melody starting on E and ending on E, with a G-natural throughout. The teacher knows the performed melody began on A, used G-sharp at the cadence, and ended on A. The student's two versions differ in starting pitch, mode, and cadence. The class has five minutes left, and the teacher must decide how to diagnose the error and what to assign.
1. Diagnose the likely cause of the student's two different readings and explain what each version reveals.
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The first reading (A to A, G-sharp at the cadence) is consistent with the performed melody: it identifies the tonic as A, hears the leading tone correctly, and places the cadence on the tonic. The second reading (E to E, G-natural) suggests the student re-anchored on the dominant or on a different pitch after the second hearing, then interpreted the melody as centered on E. That produces a modal shift: with E as the perceived center and G-natural, the student hears a natural-minor or Aeolian color rather than the harmonic-minor leading tone. Likely causes: the student is using absolute pitch labels inconsistently, is anchoring on the first and last notes heard rather than on the tonal center, or is confusing the dominant with the tonic. The discrepancy between G-sharp and G-natural is the diagnostic key-it shows the student heard the raised leading tone in one pass and then reinterpreted it as a diatonic note after re-anchoring. The teacher should treat the second version not as a random error but as evidence of a stable but misassigned tonal center.
2. Given five minutes, what should the teacher do in class, and what should be assigned afterward?
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In the five minutes, the teacher should not simply give the correct answer. A productive move: replay only the final two bars and ask the class to sing the last note and then the note a step below it, establishing whether the cadence uses a raised leading tone. Then ask students to identify the tonal center by singing the tonic triad, not by naming the first note. This targets the actual error-anchoring on endpoints rather than on tonal center-and fits the time. The teacher can then confirm the A-minor reading with G-sharp. Afterward, assign a short dictation set in which melodies begin on a scale degree other than the tonic, so students must infer the tonal center from the cadence and the leading tone rather than from the first note. Pair this with a singing exercise that asks students to sing the tonic after hearing a dominant-ending phrase. The judgement call is to spend the scarce minutes on the diagnostic concept, not on correcting a single melody.
3. How should the teacher grade the two attempts fairly?
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Grade the process, not only the product. The first attempt captures the tonic, the leading tone, and the cadence, so it should earn high credit for tonal identification and cadence hearing. The second attempt is wrong in tonal center but internally consistent: it preserves contour and rhythm and shows a coherent modal interpretation, so it should earn partial credit for contour, rhythm, and consistency rather than zero. The teacher should record which specific skill failed-tonal-center identification under re-hearing-and use that as the basis for feedback and reassignment. Fair grading also means not penalizing the student twice for the same error across both attempts; the second attempt is evidence of the same underlying issue, so the teacher should score the better attempt and note the pattern. The exam-style point is that a wrong answer can demonstrate a correct skill applied to a wrong anchor, and grading should distinguish those cases.