You hear a passage in C major that moves to a D7 → G cadence, then immediately returns to a C major chord and stays in C. This is best described as:
AA modulation to G major, since a cadence in G was clearly present
BA tonicization of G major, since the music returned to C without establishing G as a new center
CA pivot chord modulation, since D7 functions in both keys
DA chromatic mediant relationship between C and G
Tonicization is a temporary emphasis of a non-tonic chord using its own dominant — here, D7 (V of G) resolves to G, making G sound briefly like a local tonic. But modulation requires that the music remain in the new key, confirmed by cadence. Since the passage immediately returns to C, G was only tonicized, not established as a new tonal center. The distinction hinges on whether the new key is confirmed and sustained.
Question 2 Multiple Choice
When listening for a modulation from C major to G major, what is typically the first audible signal that a key change may be occurring?
AThe melody ascending to a higher register than usual
BA change in rhythmic density or tempo
CThe appearance of F# — a chromatic pitch that was not diatonic to C major
DThe dominant chord (G major) being sustained for a longer duration than normal
The chromatic pitch is the ear's first warning. Moving from C major to G major introduces F#, which was absent from C major's scale. Your ear registers the unfamiliar note before consciously identifying the new key — the disruption in the expected diatonic pattern signals that the harmonic landscape has shifted. F# typically functions as the new leading tone (7th scale degree of G), creating the characteristic pull toward the new tonic.
Question 3 True / False
A modulation is confirmed as soon as a chord built on a non-tonic scale degree is strongly emphasized, even briefly.
TTrue
FFalse
Answer: False
Strong emphasis of a non-tonic chord — even with its own dominant — is tonicization, not modulation. Modulation requires the music to cadence into the new key (typically with a V7–I resolution) and remain there for a meaningful duration. The key distinction is permanence: modulation establishes a new tonal home; tonicization visits one without settling.
Question 4 True / False
The dominant key (up a fifth) is the most common modulation target in tonal music and shares all but one pitch with the original key.
TTrue
FFalse
Answer: True
The dominant key shares all but one pitch with the original — in C major, moving to G major introduces only F# while keeping all seven other scale steps the same. This makes dominant-key modulations smooth and easy to miss on first listen, which is why they are the best starting point for modulation ear-training. The single new chromatic pitch (the raised 4th scale degree of the original key) is the key signal to track.
Question 5 Short Answer
What specifically distinguishes a modulation from a tonicization, and what do you listen for to confirm that a true modulation has occurred rather than a temporary emphasis?
Think about your answer, then reveal below.
Model answer: Tonicization temporarily emphasizes a non-tonic chord using its own dominant but then returns to the original key; modulation establishes a new tonal center that the music remains in. To confirm modulation, listen for: (1) a V7–I cadence in the new key, with the new leading tone resolving upward and the seventh resolving downward; (2) the music staying in the new key for multiple bars or phrases rather than retreating to the original tonic. Both elements together — the confirming cadence and the sustained new tonal center — distinguish modulation from mere tonicization.
The confirmation cadence is what 'locks in' the new key. A single D7–G resolution in a C major context might be a secondary dominant (tonicization); a D7–G cadence followed by continued harmonic activity around G as tonic — with no return to C — signals that G has become the new home base.