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A quarter note equals one beat in 4/4, and the dot adds half its value, making the dotted quarter 1.5 beats. Adding the eighth note (0.5 beat) yields a total of two beats, which is why this rhythm is often beamed together as a single unit.
An augmented fourth (for example C to F-sharp) and a diminished fifth (C to G-flat) sound identical on equal-tempered instruments because both span six semitones. They are spelled differently and function differently in tonal harmony, but they share the same pitch content.
The order of flats is B, E, A, D, G, C, F, and the key of B-flat major uses the first two: B-flat and E-flat. That produces the correct whole-whole-half-whole-whole-whole-half pattern starting on B-flat.
An authentic cadence is the V-to-I progression and is the conventional marker of full closure in tonal music. A perfect authentic cadence further requires both chords in root position with the tonic in the soprano of the final chord.
Compound duple meter groups six eighth notes into two beats of three eighths each, and a dotted quarter equals three eighths. Conductors therefore beat 6/8 in two, not six, at moderate and fast tempos.
Diminuendo (also written decrescendo) indicates a gradual decrease in loudness. Its opposite, crescendo, indicates a gradual increase over the same span of music.
In the Hornbostel-Sachs classification, chordophones generate sound from vibrating strings, which covers violins, cellos, guitars, and harps. The other categories are defined by air columns, stretched membranes, and the body of the instrument itself.
The treble clef is also called the G clef because its curl circles the second line, fixing that line as G above middle C. The lines from bottom to top spell E, G, B, D, F.
G major requires one sharp, F-sharp, because the leading tone of the new key must be raised a semitone above F. Moving up a perfect fifth around the circle of fifths always adds one sharp in this order.
A minor triad consists of a minor third from the root to the third and a major third from the third to the fifth. The resulting outer interval is a perfect fifth, as in A-C-E.
SATB voicing places the soprano on the top staff in treble clef, and in chorale style this voice carries the tune. The alto and tenor fill the inner parts, and the bass anchors the harmony on the bottom staff.
Ritardando (often abbreviated rit.) indicates a gradual slowing of tempo, usually toward the end of a phrase or section. It differs from a sudden tempo change, which would be marked with a new metronome indication.
Ternary form follows an A-B-A plan, where the opening material returns after a contrasting section. The return may be varied, but the structural symmetry of statement, contrast, and restatement defines the form.
Improvising over the changes means creating a new melody while following the harmonic progression of the original tune. The rhythm section typically states those chords while the soloist invents above them.
The relative minor shares a key signature with its major and starts on the sixth degree of that major scale, which is the same pitch collection. For example, A minor and C major use identical pitches without accidentals.
Con sordino instructs string players to attach a mute to the bridge, which dampens resonance and produces a veiled, softer timbre. The instruction is cancelled by 'senza sordino'.
The twelve-bar blues uses the tonic, subdominant, and dominant chords in a fixed pattern, typically I for four bars, IV for two, I for two, V, IV, and back to I. The form is harmonic and structural rather than melodic.
A perfect fifth above F is C, so the new key is C major. Transposing by a perfect fifth moves one step clockwise around the circle of fifths, removing one flat from the key signature.
Monophony consists of one melodic line sounding alone, as in unaccompanied plainchant or a solo instrument playing without accompaniment. Any simultaneous independent or chordal support would move the texture into another category.
The exposition presents the primary theme in the tonic and then the secondary theme in a related key, often the dominant or relative major. The development then explores and fragments that material before the recapitulation restates it in the tonic.
The Neapolitan sixth is a major triad on the lowered second scale degree, usually appearing in first inversion, which is why it is called a sixth chord. It functions as a predominant, typically resolving to the dominant.
A hemiola superimposes a two-against-three grouping, often making two bars of triple meter feel like three groups of two. It can be written out through changing meter or implied without a signature change.
In a fugue exposition, the subject enters in one voice and is answered in another while the first continues with countersubject material. This overlapping entry is what distinguishes fugal imitation from simple successive repetition.
To tonicize A minor, the harmony needed is the dominant of A, which is E major (E-G-sharp-B). In C major this appears as V/vi, introducing G-sharp as a chromatic alteration.
A twelve-tone row is conventionally worked through four basic forms: prime, inversion, retrograde, and retrograde-inversion, each of which may also be transposed to any of the twelve pitch classes. This yields forty-eight related forms of the row.
Oblique motion occurs when one voice stays on the same pitch while the other moves up or down. The other three terms all describe situations in which both voices move, so they cannot apply when one voice is stationary. Recognizing oblique motion matters in voice-leading analysis because it avoids the parallel perfect intervals that strict counterpoint forbids.
A cappella literally means 'in the manner of the chapel' and in practice directs that the voices sing unaccompanied. It says nothing about language, dynamic level, or which voice parts participate. The term appears frequently in choral repertoire listings and audition materials.
A half note lasts two beats in common time, so half of its value is one beat, which is a quarter note. The rhythmic hierarchy halves at each level: whole, half, quarter, eighth, sixteenth. Students should be able to move fluently in either direction along that chain.
Pizzicato instructs a string player to pluck the string rather than bow it, producing a short, detached articulation. Bowing near the bridge is sul ponticello, and striking with the bow wood is col legno. Humming while bowing is not a standard string technique.
Compound duple meter such as 6/8 divides each of its two main beats into three eighth notes, giving two groups of three. The grouping three groups of two describes simple triple meter like 3/4. Conductors show 6/8 in two, with the primary accent on beat one and a secondary accent on beat four.
Tempo denotes the rate of the pulse, and Italian terms such as allegro, andante, and adagio specify it. Dynamics govern loudness, articulation governs how notes are attacked and released, and timbre is tone color. These four parameters are frequently confused on licensing exams.
The clarinet is a single-reed woodwind, with the reed fastened to a mouthpiece. The flute produces sound from an airstream across an embouchure hole, and the oboe and bassoon are double-reed instruments. Reed type is a common identification item in instrument-family questions.
An authentic cadence is V to I, and it is perfect when both chords are in root position and the melody closes on the tonic. A plagal cadence is IV to I, a deceptive cadence is V to vi, and a half cadence pauses on V. Cadence labels depend on both the chord pair and the melodic arrival.
A minor third above A is C, and transposition preserves mode, so the new key is C minor. The relative major of A minor is C major, which is a common distractor but changes the mode. Transposition questions require counting the interval and keeping the quality intact.
The slashed circle symbol denotes a half-diminished seventh chord, built from a diminished triad plus a minor seventh, so B-D-F-A. The full circle indicates a fully diminished seventh, B-D-F-A♭. The plain m7 and maj7 symbols describe different seventh qualities.
Polyphony combines independent melodic lines, as in a fugue or a Renaissance motet. Homophony subordinates accompanying voices to a single melody, monophony has one line only, and heterophony varies one line simultaneously. The distinction between polyphony and homophony is central to texture analysis.
In E major the tonic is E, the subdominant is A, and the dominant is B, so B7 functions as the dominant that resolves to tonic. The dominant seventh contains the leading tone and the fourth scale degree, which pull strongly to the tonic triad. Identifying function by scale degree is faster than memorizing chord lists.
A pedal point is a held note, usually in the bass, that persists while the harmony above it changes, creating tension and release. An ostinato is a repeated melodic or rhythmic figure, Alberti bass is a broken-chord accompaniment pattern, and walking bass is a moving jazz line. The pedal point is common in organ music and in the closing sections of tonal works.
A tonic triad is built by stacking thirds on the first scale degree, giving scale degrees 1, 3, and 5. In a major key those degrees produce a major triad. The other sets listed do not form a triad in thirds at all.
In treble clef the first ledger line below the staff is middle C, one step below the D that sits just under the staff. This note is written frequently for flutes, violins, and sopranos at the bottom of their range. Reading ledger lines fluently is essential for sight-reading tests.
An ostinato is a figure repeated persistently, often in the bass, while other material develops above it. A sequence restates a motive at a different pitch level, inversion flips the contour, and retrograde reverses the order of pitches. These transformation terms are frequently tested together.
Mixed meter changes the meter signature from measure to measure while the underlying pulse remains steady, a hallmark of much twentieth-century and folk-derived music. Rubato is expressive tempo flexibility, syncopation is accenting weak beats, and hemiola implies two against three within a stable meter. The constant eighth-note pulse distinguishes mixed meter from tempo change.
The standard B♭ trumpet sounds a major second below its written pitch, so a written C sounds as B♭. This transposition matters when a conductor reads a score with transposing parts. Trombones, concert flutes, and violins are non-transposing and sound as written.
An episode is a passage between subject entries that develops motivic material and modulates toward the next entry key. The countersubject is the counterpoint that accompanies the subject, the answer is the second entry itself, and the coda closes the work. Distinguishing episodes from entries is a standard fugue-analysis task.
A7 is V7 of D minor, and D minor is the supertonic of C major, so A7 functions as a secondary dominant tonicizing ii. The raised C♯ in A7 signals the applied leading tone. Borrowed chords, Neapolitan sixths, and augmented sixths have different signatures and resolutions.
Serial theory derives four forms from a row: prime, inversion, retrograde, and retrograde inversion. The retrograde reverses the order of pitches, while the inversion flips interval direction and keeps the order. Combining the two operations yields the retrograde inversion, and each form may appear at any transposition.
In minor-key cadences the raised leading tone (G♯ in A minor) is a tendency tone that must resolve upward to the tonic, so placing it in an inner voice makes it easy to leave unresolved. The other listed issues are possible in chorale writing but are not the characteristic risk created by an inner-voice leading tone. Careful spacing and resolution checks prevent this error.
The Neapolitan chord is a major triad built on the lowered second scale degree, here D♭ major in C, and it usually appears in first inversion before the dominant. A secondary dominant would be a major triad on a diatonic degree other than the tonic, and a borrowed mediant would be E♭. The Neapolitan's flat-second root is its defining feature.
The essential feature of the recapitulation is that the second theme, which appeared in a contrasting key in the exposition, returns in the tonic so the movement can close in the home key. The first theme normally returns, and the development is not repeated verbatim. This tonal adjustment is what resolves the structural tension set up by the exposition.
A perfect fifth spans seven semitones, and counting five staff degrees upward from F gives C. F4 up to C5 is the perfect fifth, so the altos sing C5. Going down a fifth from F would give B♭, and going up a fourth would give B♭ as well, so register and interval size both matter here.