Dominant harmony resolves to tonic. Voicing and inversion determine whether the authentic cadence meets the stricter perfect form.
This music cadence identifier analyzes the final two chords of a harmonic phrase and shows whether they form an authentic, half, plagal, deceptive or another type of ending. Choose the key, mode and chords below, explore more audio tools for musicians, or return to Ronter Sound.
Set the key and the last two chords of a phrase to inspect its harmonic ending.
Bass position and the highest note are used when distinguishing perfect and imperfect authentic cadences. The dominant-form option affects minor-key V harmony.
The dominant moves to the tonic, both chords are in root position, and the tonic is the highest note of the final chord. These conditions produce a perfect authentic cadence.
A music cadence identifier examines the harmonic motion at the end of a phrase. Rather than analyzing every chord in a song, this tool concentrates on the relationship between the final two harmonies and their functions inside the selected key.
Choose the tonic and major or minor mode, then select the penultimate and final chords. The tool translates those chords into Roman numerals and compares their movement with common cadential patterns.
When the progression is V–I or V–i, inversion and the highest note of the final chord provide additional information. This allows the analyzer to distinguish a perfect authentic cadence from an imperfect authentic cadence instead of treating every dominant-to-tonic ending as identical.
For additional interactive listening exercises, visit the audio tools collection.
Dominant harmony resolves to tonic. Voicing and inversion determine whether the authentic cadence meets the stricter perfect form.
The phrase stops on dominant harmony, creating an unfinished feeling that often invites continuation.
Subdominant harmony moves directly to tonic without the conventional dominant-to-tonic route.
Dominant harmony creates an expectation of tonic but moves elsewhere, commonly to the submediant.
Cadences work like structural punctuation in harmony. Two phrases may contain similar chords but feel very different because one resolves to tonic while another stops on dominant harmony or redirects the expected resolution.
Looking specifically at the ending helps separate the function of a cadence from the larger progression around it. The surrounding music still matters, but the final harmonic relationship provides a practical starting point for classification.
A cadence is more than two chord names. Key, harmonic function, inversion and melodic placement can change how an ending is classified and how strongly it feels resolved.
Dominant resolves to tonic. With both chords in root position and C at the top of the final chord, this can form a perfect authentic cadence.
Subdominant moves directly to tonic, producing the characteristic harmonic pattern of a plagal cadence.
The phrase finishes on dominant harmony rather than tonic, so the ending can function as a half cadence.
The dominant does not resolve to the expected tonic and instead moves to the submediant, a standard deceptive-cadence pattern.
Both belong to the authentic family because dominant harmony resolves to tonic. A perfect authentic cadence has stricter conditions: the dominant and tonic are in root position and the tonic scale degree is in the highest voice of the final tonic chord.
If V resolves to I or i but those conditions are not all satisfied, the ending can be classified as an imperfect authentic cadence. This is why the tool asks for more than the chord symbols when an authentic progression is being examined.
Understanding the actual voicing also becomes important when harmony is divided between instruments. The instrument recording overview explores the later stage of capturing arranged instrumental parts.
A chord name alone does not reveal its harmonic function. G major is V in C major, I in G major and can occupy other roles in other tonal settings. Cadence identification therefore begins by establishing a tonal reference.
Roman numerals make that relationship visible. Instead of memorizing every possible pair of chord names, you can recognize functional patterns such as V–I, IV–I and V–vi across different keys.
If you are moving from harmonic analysis toward complete song preparation, the song demo production overview looks at how musical ideas develop into an arranged recording.
A music cadence identifier tool is useful when you want to connect chord symbols with the way a phrase actually behaves. Instead of seeing harmony as a sequence of unrelated names, cadential analysis highlights expectation, arrival and continuation.
Use the result as a description of the selected harmonic ending, then listen to the complete phrase. Rhythm, melody, duration, register and musical emphasis all influence how strongly a cadence is perceived.
In C major, play G followed by C and notice the arrival on tonic. Then reverse the direction and play C followed by G. The same two chord roots are present, but the harmonic direction and sense of completion are fundamentally different.
Authentic cadences center on dominant-to-tonic motion. In a major key, the basic relationship is V–I. In minor, tonal harmony commonly uses a major dominant created by raising the seventh scale degree, producing a stronger leading-tone relationship to the tonic.
The analyzer therefore lets you choose whether the minor-key dominant is the major V associated with the raised leading tone or the minor v found in the natural-minor collection.
If you are practicing harmony before recording an arrangement, the First Time Recording Studio Guide provides a broader preparation path once the musical material is ready.
A half cadence is defined primarily by its destination: the phrase ends on V. Because dominant harmony points strongly beyond itself in tonal music, the ending can sound open or unfinished.
The chord before V can vary, so a cadence tool should not reduce the category to one fixed two-chord formula. The important feature is the arrival on dominant at the phrase boundary.
IV–I is the familiar major-key plagal pattern. It reaches tonic from the subdominant side rather than through dominant harmony.
In minor contexts, iv–i provides the corresponding minor-mode motion. The exact musical effect still depends on voicing, melodic line and placement within the phrase.
When chord movement is distributed across multiple tracks, the Interactive Online Audio Mixer offers a separate way to practice hearing how recorded parts interact.
A deceptive cadence begins with dominant harmony but redirects the expected resolution. In major keys, V–vi is a standard example. In minor keys, V–VI provides the corresponding common pattern.
This can preserve forward motion because the dominant has created an expectation that is not fully satisfied. The progression can then continue rather than settling immediately on tonic.
Harmony tells only part of the story. In a perfect authentic cadence, the tonic scale degree appears in the highest voice of the final tonic chord. If another chord tone occupies that position, the same V–I harmonic movement does not meet the full perfect-authentic conditions.
This is especially relevant for vocal music because the melody often forms the most perceptually prominent upper line. The vocal recording page looks at performance and recording once those melodic choices are set.
Root position strengthens the bass relationship that defines the strict perfect authentic form. If the dominant or final tonic is inverted, V–I motion can still belong to the authentic family, but it no longer satisfies all conditions for a perfect authentic cadence.
This is one reason the identifier includes bass-position controls rather than trying to infer the complete cadence from Roman numerals alone.
A chord progression can contain V–I motion in the middle without every occurrence functioning as a major phrase-ending event. Musical placement matters. Cadences become especially meaningful where rhythm, melody and harmony cooperate to articulate the end of a phrase.
When arranging a song, compare several endings rather than judging each chord pair in isolation. A half cadence can support continuation into another phrase, while a strong tonic resolution may reinforce the end of a larger section.
Different genres handle these expectations differently. The music genre recording overview provides a wider look at how musical arrangements vary across styles.
Use the analyzer to create examples deliberately. Select V–I, listen to it on an instrument, then compare it with IV–I, I–V and V–vi. Repeating that process connects theoretical labels with audible harmonic direction.
Eventually, try predicting the cadence before checking the chord symbols. The goal is not only to recognize a formula visually but to hear whether a phrase arrives, pauses, redirects or remains open.
For another hands-on audio environment, the Mixer Console Simulator shifts the exercise from harmonic analysis to listening and balancing recorded material.
Changing only the final harmony can alter the direction of an entire phrase. A songwriter might use a half cadence before another verse phrase, an authentic resolution at a structural arrival, or a deceptive motion when continuation feels more useful than closure.
These are compositional possibilities rather than rules requiring every song to follow the same harmonic grammar. The identifier tells you how the selected tonal pattern relates to common cadence categories; the musical context determines whether that ending serves the piece.
The relationship between musical decisions and performance is explored further in Musician Psychology and Recording Confidence .
Once a progression is arranged, voicing and instrumentation determine how clearly its cadential motion is heard. A bass line may emphasize root movement, while an upper voice can make the final melodic arrival more or less obvious.
After recording, balance also affects perception. The mixing and mastering overview covers the later production stage where those recorded layers are shaped into a complete mix.
Cadence labels are most useful when they help explain harmonic motion that is already audible in the music. Try the same progression in several keys, change inversions, move the highest note and compare the result.
If you are preparing instrumental parts for a full song, the music recording overview continues from harmonic planning into the practical recording stage.
Continue from chord analysis into arranging, recording, listening and production.
Compare authentic, half, plagal and deceptive endings above, then continue with more interactive music tools.
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