Trinity Music Theory Study Guide – Grade 4

Clefs: Introducing the Alto Clef

Beyond the familiar treble (G) and bass (F) clefs, Grade 4 introduces a new clef: the alto clef. While composers sometimes change clefs within a piece, even mid-bar, the alto clef is particularly useful for instruments whose music lies between the treble and bass clef staves, reducing the need for numerous leger lines.

The alto clef is known as a C clef because its middle point is centred on Middle C. Remember that the treble clef curls around the G line and the bass clef dots frame the F line. Positioning the middle of the alto clef correctly is important because other C clefs are centred on different lines.

Music for the viola is typically written in alto clef. The workbook demonstrates how the alto clef makes sense for the viola’s open strings compared to writing them in bass or treble clefs, which would require many leger lines.

Exercises in this section involve naming notes in alto clef and adding the correct clef (treble, alto, or bass) before given notes to match specific pitches. A handy tip is to use Middle C as a reference point for checking your first and last notes.

Rhythm: Expanding Your Understanding

Grade 4 expands your rhythmic knowledge with new time signatures and concepts.

New Time Signatures You need to know the time signatures of ⁵/₄, ⁵/₈, and ⁷/₈.

• ⁵/₄ signifies 5 crotchet beats per bar.
• ⁵/₈ signifies 5 quaver beats per bar.
• ⁷/₈ signifies 7 quaver beats per bar.

A key feature of these time signatures is the irregular grouping of main beats. In ⁵/₄ or ⁵/₈, composers often group the beats into two longer main beats, such as 2+3 or 3+2. In ⁷/₈, the quaver beats are often grouped into two or three longer main beats, such as 2+3+2, 3+2+2, 3+2, or 2+3. Numbers are sometimes written above the music to indicate how notes and rests should be grouped and beamed.

A semibreve rest continues to indicate a whole bar of silence in any time signature.

Exercises involve identifying main beats in given bars, writing correct time signatures for rhythms, and adding bar lines to music with specified time signatures.

Harmonic Rhythm Harmonic rhythm describes how quickly chords change in a piece and whether these changes are regular or irregular. The type of harmonic rhythm used significantly impacts the mood of the music. Examples provided show regular harmonic rhythm (chord changes once per bar) and irregular harmonic rhythm.

Chord progression refers to the sequence of chords in a piece. Composers rarely use many root-position triads consecutively, as this can make the music sound heavy and often results in parallel 5ths, which are generally avoided.

Setting Words to a Rhythm Setting words to music is an age-old practice. For the Grade 4 exam, the rule is that important words or syllables should be placed on the main beats (strong beats or stresses) of a bar. An anacrusis (or up-beat) is used when the first word or syllable is less important than the second.

When writing words under a rhythm:

• For a single-syllable word, centre it below the note.
• For multi-syllable words, place each syllable below a different note, linked by a hyphen.
• If a few notes are sung to one syllable, add a line at ground level after the word/syllable to show where the sound should end. This also applies if the note is tied.
• If more than one note is sung within a multi-syllable word, only use a hyphen to link the syllables.

Exercises include identifying important words/syllables, continuing rhythms to fit phrases (noting the same words can fit different time signatures), writing words under rhythms, and correcting mistakes in word setting. Composers sometimes separate beaming to clarify syllables for singers.

Pitch: Notes, Scales, Keys, and Intervals

Your understanding of pitch is deepened with the introduction of new keys, scales, enharmonic concepts, and specific intervals.

Enharmonic Equivalents Enharmonic equivalents are notes that sound the same but are written differently. For example, B flat and A sharp sound identical on a piano keyboard. To identify them, use a keyboard and pay attention to the clef. Interestingly, entire keys can be enharmonically equivalent, but you don’t need to know this for the exam. F sharp and G flat are also enharmonically equivalent.

Exercises involve circling enharmonically equivalent pairs and writing the enharmonic equivalents of given notes.

The Chromatic Scale In a chromatic scale, the distance between each consecutive degree is a semitone. You can play a chromatic scale by playing every note (white and black) within an octave on a piano. There are multiple correct ways to write a chromatic scale. Composers often use accidentals within a key signature when writing chromatic passages, sometimes inconsistently.

For Grade 4, you need to recognise chromatic scales or passages, not necessarily write them from scratch, although copying exercises are included. A chromatic passage moves up or down in semitones.

The concept of similar motion (two or more parts moving in parallel or the same direction) and contrary motion (moving away from or towards each other) is also introduced. A handy tip for multiple accidentals on one stave is to place the upper part’s accidental nearest the note-head.

Exercises involve circling chromatic passages in music and copying chromatic scales.

New Keys and Scales The new keys for Grade 4 are A major and E flat major, along with their relative minors, F sharp minor and C minor. These keys function like others you know, using key signatures to maintain the correct tone-semitone pattern. You need to know scales (natural, harmonic, and melodic for minor keys), key signatures, one-octave arpeggios, broken chords, and tonic triads (in root, first, or second inversion) for all keys covered so far.

The circle of 5ths is mentioned as a familiar tool from previous grades, highlighting the new keys for Grade 4.

Labelling Scales Exercises require you to label given scales, sometimes without key signatures, relying on accidentals. Remember that melodic and natural minor scales sound the same going down, so either label is acceptable.

Working Out the Key of a Piece Grade 4 requires you to identify the key of a piece in the new keys (Eb/A major, C/F# minor). The workbook provides a method using these questions:

1. Check the key signature for flats or sharps and their number. This suggests possible major/minor keys.
2. Look for accidentals that could be the raised 6th or 7th degrees in the relative minor. If present, the key is likely minor.
3. Look for other clues, such as passages based on the scale or notes of the tonic triad, or the final note.

Examples demonstrate working out the key for pieces by Mozart (A major) and Haydn (C minor).

Harmony: Triads, Chords, and Progressions

Harmony is a significant focus, covering triads, chords, and how they move together. Chord progression can also be called harmony.

Tonic Triad Inversions Root position, first, and second inversions of tonic chords or triads can be labelled.

• Roman Numerals: In major keys, root position is I, first inversion is Ib, and second inversion is Ic. In minor keys, these are i, ib, and ic.
• Chord Symbols: Show inversions by listing the bass note after the chord symbol (e.g., C, C/E, C/G for C major; Am, Am/C, Am/E for A minor).

Figured bass, an 18th-century system based on intervals above the bass line, is mentioned as historical context but is not required for the exam. You are encouraged to write both Roman numerals and chord symbols for practice, though composers typically use one or neither.

Exercises involve writing tonic triads in root, first, and second inversions and labelling them with Roman numerals and chord symbols.

Arpeggios and Broken Chords Arpeggios and broken chords are both formed by ‘breaking up’ a chord. For Grade 4, one-octave arpeggios are required. Arpeggios can sometimes be found within larger broken chord patterns.

Composers use broken chords to create a particular feel or texture in the music. Texture can be described in various ways, such as thick, thin, polyphonic (multiple interweaving parts), or homophonic (parts moving in the same rhythm). For the exam, you’ll work with broken chords based on tonic triads in the specified keys, often written in patterns (e.g., patterns of three notes).

Exercises involve writing and labelling one-octave arpeggios and broken chords.

Subdominant Triads The 4th degree of a scale is known as the subdominant, or ‘fa’ in major keys. The triads built on the 1st (tonic), 4th (subdominant), and 5th (dominant) degrees are often called primary chords due to their importance. Many songs are composed using only these chords.

Subdominant triads are built on the 4th degree. In major keys, the subdominant triad is labelled IV or with a major chord symbol (e.g., F in C major). In minor keys, the subdominant triad built on the harmonic minor scale is labelled iv or with a minor chord symbol (e.g., Dm in A minor) because the bottom interval is a minor 3rd. However, if the melodic minor scale is used ascending, the 6th degree is raised, making the subdominant triad major, labelled IV or with a major chord symbol (e.g., D in A minor).

Exercises involve writing tonic, subdominant, and dominant triads on scales and labelling them.

Chord Progression Labelling You will need to label chord progressions using Roman numerals below the stave and chord symbols above. Examples are provided for various keys. Again, the handy tip about avoiding consecutive root position chords (and resulting parallel 5ths) is reiterated.

Writing Bass Lines and Tunes A task involves writing a bass line below a tune or vice versa. When writing a bass line, use the root of each specified triad. A strong bass line often moves in contrary motion to the tune. It is important to avoid moving in similar motion in perfect 5ths or octaves with the tune, as this sounds weak and will lose marks. These parallel 5ths can be compound intervals. Playing what you write is a useful way to develop an inner ‘ear’.

When writing a tune above a bass line, use notes from the indicated chords (tonic, subdominant, dominant, dominant 7th). A strong tune often moves in contrary motion to the bass line, and you must avoid parallel 5ths or octaves in similar motion. In minor keys, pay attention to whether the Roman numerals are large (IV, V) or small (iv, v); large numerals suggest the melodic minor scale (with raised 6th and 7th going up), while small numerals suggest the natural minor scale (or melodic minor going down).

Exercises involve writing bass lines and tunes based on Roman numerals or chord symbols. You are also encouraged to add musical words and symbols to the tunes you write.

Unaccented Passing Notes Unaccented passing notes are notes that connect harmony notes within a tune, making it sound smoother. They are called ‘unaccented’ because they do not fall on the strong beats (main beats) of the bar. An example shows circled passing notes.

In minor keys, passing notes from the melodic, harmonic, or natural minor scales might be used depending on whether the underlying chords are iv/IV or v/V.

Exercises involve adding unaccented passing notes to melodies. Remember they appear on the weaker beats.

4-Part Chords for SATB You need to know how to write tonic, subdominant, and dominant chords in root position for SATB voices (soprano, alto, tenor, bass) in the keys you know. To write these chords: identify the triad from the Roman numeral, double the root, and spread the notes relatively evenly across the staves. This helps the chord sound clear and balanced and provides notes suitable for each singer’s range. While aiming for even spacing, it’s acceptable for the distance between the bass and tenor parts to be greater than an octave.

Exercises involve identifying the roots to double and writing out the 4-part chords for SATB. Referring to voice ranges is helpful.

Cadences: Plagal Cadences Cadences are chord progressions that provide structure and meaning, acting like musical punctuation. You learned the perfect cadence (V-I or v-i), acting as a musical full stop, in Grade 3.

Grade 4 introduces the plagal cadence (IV-I or iv-i). It is less common than the perfect cadence and is sometimes called the Amen cadence or Church cadence because it’s frequently found in church music. The source also lists “half close” as another word for plagal cadence. It sounds calmer than the perfect cadence.

Exercises involve identifying the key and type of cadence (perfect or plagal) and labelling the chords with Roman numerals.

Intervals: Augmented 4ths and Diminished 5ths Grade 4 requires you to distinguish between perfect 4ths/5ths and augmented 4ths/diminished 5ths.

• Identifying Intervals: First, count the number of scale degrees from the bottom note to the top note to get the interval number. Then, imagine the bottom note is the tonic of a major key. If the top note is in that major scale, the interval is perfect (for 4ths, 5ths, and octaves) or major (for other intervals). If not, check if it’s one semitone larger or smaller.
• Augmented Intervals: Augmented means to make the interval larger. An augmented 4th is one semitone larger than a perfect 4th.
• Diminished Intervals: Diminish means to make the interval smaller. A diminished 5th is one semitone smaller than a perfect 5th.

Perfect 4ths are always between the 1st and 4th degrees of major and minor scales. Perfect 5ths are always between the 1st and 5th degrees.

Interestingly, an augmented 4th and a diminished 5th sound exactly the same on a piano keyboard (e.g., F sharp and G flat), as they are enharmonically equivalent. This is why counting the interval number from the bottom note is vital. Augmented 4ths and diminished 5ths divide an octave perfectly in half and occur halfway along a chromatic scale. Augmented 4ths are also sometimes called tritones.

Exercises involve naming intervals, identifying whether a perfect 4th is larger/smaller than an augmented 4th, circling diminished 5ths, and identifying whether a perfect 5th is larger/smaller than a diminished 5th. Compound intervals (larger than an octave) are also mentioned, specifically the compound diminished 5th (or diminished 12th) which is an octave plus a diminished 5th.

Transposing Tunes Transposing a tune means moving it up or down to a different pitch, often done to make it suitable for a particular instrument or voice range. For Grade 4, you transpose tunes up or down a perfect 4th or 5th within the keys for the grade.

The method for transposing a tune is as follows:

1. Write the tonic and key signature of the original piece.
2. Move the original tonic up or down a perfect 4th or 5th to find the new tonic.
3. Write the new tonic and its key signature.
4. Write out the tune at the new pitch, maintaining the same intervals between notes as the original. Use the new key signature and add necessary accidentals to ensure the intervals remain correct (a perfect 4th or 5th apart from the original notes).
5. Check that the final note you write is a perfect 4th or 5th higher or lower than the original final note.

Transposing Instruments Some instruments are transposing instruments, meaning the music is written at a different pitch than it sounds. For Grade 4, you need to know the ranges and transposition intervals for the French horn, descant recorder, oboe, viola, double bass, and guitar.

• Music for double bass is written an octave higher than it sounds.
• Music for descant recorder is written an octave lower than it sounds.
• Music for classical (or Spanish) guitar is written an octave higher than it sounds.
• Music for French horn in F is written a perfect 5th higher than it sounds.

Exercises involve transposing notes and tunes for these specific instruments and intervals.

Dominant 7th Chords and Resolution

The dominant 7th chord (V7 or v7) is a key concept. It’s built on the dominant degree of the scale, with an added 7th above the root. Examples are shown for C major (G7) and A minor (E7). The Roman numeral and chord symbol include a little 7.

A fascinating aspect of the dominant 7th chord is its strong pull towards the tonic chord – it feels unstable until it “resolves” there. The progression from dominant 7th to tonic (V7-I or V7-i) is a type of perfect cadence. Composers sometimes omit the 5th of the chord, but rarely the root or 3rd.

Within every dominant 7th chord in root position, there is an interval of a diminished 5th. This interval contributes to the chord’s unstable or “insecure feel”.

To resolve the dominant 7th smoothly to the tonic chord:

• The leading note (the 7th degree of the scale, which is the 3rd of the dominant triad) usually rises to the tonic.
• The 7th in the dominant 7th chord falls to the 3rd of the tonic chord.

Examples demonstrate the resolution of G7 to C in C major and E7 to Am in A minor. Exercises involve writing dominant 7th chords, labelling them, and resolving diminished 5ths (including compound diminished 5ths) within V7 chords.

Form: Understanding Musical Structure

Music unfolds over time, and composers structure their ideas into sections to help listeners understand. Musicians refer to these sections and their arrangement as the form of a piece.

For Grade 4, you need to be able to identify how many sections are in a piece. These sections are often indicated by repeat marks (often after a perfect cadence) or, in vocal music, by labels like ‘verse’ and ‘chorus’ or ‘refrain’. Repetition is a common technique used by composers to make the music feel familiar to the listener. Practising ‘hearing’ the music you see helps you identify where sections end. The source mentions saying how many sections there are in a piece.

Musical Words and Symbols

You need to know a range of musical terms and symbols for Grade 4, in addition to those from previous grades.

Dynamic and Articulation Marks

• fp (fortepiano): play loudly, then immediately let the sound die away.
• sf or sfz (sforzando): play the music with a heavy accent.
• tenuto (signified by a small line above/below a note): slightly lengthen and sustain the note.

Tempo, Expression Marks, and Other Words/Signs

• accelerando: speed up.
• animato: play in an animated way.
• assai: very (e.g., allegro assai – very fast).
• ben: well (e.g., ben marcato – well accented).
• brio: brilliantly (e.g., con brio – with brilliance).
• con moto: with movement (e.g., quite fast).
• giocoso: playfully.
• largo: slow and broad.
• l’istesso: the same (e.g., l’istesso tempo – at the same speed).
• maestoso: majestically.
• pesante: heavily.
• primo: the first (e.g., tempo primo – at the first speed of the piece).
• sempre: always (e.g., sempre forte – always loud).
• senza: without (e.g., senza sordino – without mute).
• simile (sim.): play in a similar way.
• subito: suddenly.
• troppo: too much (e.g., ma non troppo – but not too much).

Exercises involve identifying and understanding these terms within musical examples.

Analysis

Analysis is a core part of the exam, where you answer questions about a piece of music. The sample analysis questions cover a wide range of topics from the syllabus, including:

• Identifying the key.
• Counting occurrences of specific notes (like the raised leading note).
• Comparing harmonic rhythm between different sections.
• Writing appropriate chord symbols and Roman numerals.
• Identifying phrase endings on tonic or dominant chords.
• Explaining composer choices (like repetition).
• Identifying sequences (real or tonal).
• Identifying syncopation.
• Naming unaccented passing notes.
• Naming intervals.
• Understanding articulation marks (like tenuto).
• Commenting on chord spacing.
• Identifying suitable instruments based on range.
• Identifying cadences.
• Understanding dynamic markings.
• Identifying similar and contrary motion between parts.
• Writing notes in different clefs.
• Identifying anacruses.
• Commenting on melodic contour or features.
• Identifying suitable voice types.
• Understanding notation related to word setting (like lines after syllables).
• Identifying the final degree of the scale in the melody.

The sample examination paper also includes analysis questions.

Sample Examination Paper

The workbook includes a sample examination paper, structured into seven sections with allocated marks:

1. General multiple choice (10 marks).
2. Writing scales, arpeggios, broken chords (15 marks).
3. Correcting mistakes (10 marks).
4. Transposition (15 marks).
5. 4-part chords for SATB (15 marks).
6. Adding a bass line to a tune or vice versa (15 marks).
7. Analysis (20 marks).

The questions cover all matters specified for Grade 4 and previous grades.

Instrument and Voice Ranges

Knowing the typical written ranges for certain instruments and voices is part of the syllabus. The workbook provides written ranges for Grade 5 standard players (note that complete ranges, especially for strings, can be much higher).

• String instruments: Violin, Viola, Cello, Double bass, Classical guitar.
• Woodwind instruments: Flute, Descant recorder, Oboe, Bassoon.
• Brass instruments: French horn in F.
• Voice ranges: Soprano, Alto, Tenor, Bass. (Note: Tenor music is sometimes written in treble clef an octave higher than it sounds, a concept for a later grade).

These ranges are relevant for tasks like writing tunes for specific instruments or selecting appropriate voice types.

Musical Language: Different Words – Same Meaning

Music sometimes uses different words to describe the same thing. For Grade 4, you need to know specific synonyms (those in heavy type in the source):

• alto clef – C clef.
• C7 (in relation to chord symbols) – Cdom7.
• chord progression – harmony.
• parallel (e.g., 5ths/octaves) – consecutive.
• plagal cadence – Amen cadence, Church cadence, half close.
• strong beat – stress, down-beat.
• subdominant – fa.
• tune – melody.

The source also notes that American names for note values can be used in the exam, but there’s no obligation to use them.

Conclusion

Trinity Grade 4 Theory significantly expands your musical vocabulary and understanding, moving from basic notation and rhythm to more complex concepts like chromaticism, inversions, specific intervals, chord functions (subdominant, dominant 7th), transposition, and musical form. By diligently working through the exercises and absorbing the explanations in the workbook, and by actively engaging with the music by playing, singing, or tapping, you’ll build a solid foundation for success in the exam and further musical studies. Good luck with your practice!