Lesson Notes By Weeks and Term v3 - Senior Secondary 1
Diatonic intervals(melodic)
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Diatonic intervals(melodic)
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Subject: Music
Class: Senior Secondary 1
Term: 3rd Term
Week: 2
Theme: Musical Practice And Performance A : Aural Training I
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Students should be able to identify in terval movements in a given melody.
Musical Practice And Performance A : Aural Training I Diatonic intervals (melodic)
Term: 3rd Term Week: 11 ---
1. Overview and Learning Objectives This topic introduces students to the concept of melodic intervals within the diatonic system. Understanding intervals is fundamental to analyzing, composing, and performing music, forming the building blocks of melodies and harmonies. In the Nigerian context, recognizing interval movements is crucial for appreciating the intricate melodic lines in traditional folk songs, contemporary Nigerian pop, and various church hymns or praise and worship songs. It enhances students' aural skills, enabling them to better understand the construction of musical pieces encountered daily, whether it's a Yoruba talking drum melody translated to pitch or the distinct melodic patterns in Igbo highlife music.
Specific Learning Objectives: By the end of this lesson, students will be able to: Identify the distance between two successive notes in a melody. Determine the quality (e.g., major, minor, perfect) of these melodic intervals. Recognize whether an interval is ascending or descending within a musical phrase.
Real-world Applications in Nigeria: Performance: Musicians (instrumentalists, vocalists) use interval recognition to sight-read music, transpose pieces, and improvise effectively in Nigerian musical ensembles (e.g., church choirs, juju bands, highlife orchestras).
Composition: Composers in Nigeria utilize intervals to create varied and engaging melodies for film scores, national anthems, or new gospel songs, ensuring melodic interest and emotional impact.
Aural Training: The ability to identify intervals by ear is vital for transcribing Nigerian folk tunes, learning new songs by rote, and contributing to musical arrangements in cultural festivals or school events.
Music Appreciation: Understanding intervals deepens the appreciation of complex melodic structures in traditional Nigerian music forms (e.g., Hausa praise songs, Efik spirituals) and contemporary genres.
2. Key Concepts and Explanations 2.
1. Interval: An interval is the distance between two musical notes. It is the fundamental building block of melody and harmony. Intervals are typically described by their number (e.g., 2nd, 3rd, 4th) and their quality (e.g., Major, Minor, Perfect). 2.
2. Diatonic: The term "diatonic" refers to notes that belong to a specific major or natural minor scale. Diatonic intervals are those formed exclusively by notes found within such a scale. This limits the possible qualities of intervals compared to chromatic intervals which include notes outside the scale. 2.
3. Melodic Interval: A melodic interval occurs when two notes are sounded successively (one after the other), forming a part of a melody. This is distinct from a harmonic interval, where notes are sounded simultaneously. In melodic intervals, the direction (ascending or descending) is also important. 2.
4. Pitch: Pitch refers to the perceived highness or lowness of a musical sound. Intervals measure the distance between different pitches. 2.
5. Tone (Whole Step) and Semitone (Half Step): Semitone (Half Step): The smallest interval in Western music, equivalent to the distance between two adjacent keys on a piano keyboard (e.g., C to C#, E to F, B to C).
Tone (Whole Step): An interval composed of two semitones (e.g., C to D, F# to G#). 2.
6. Identifying Melodic Diatonic Intervals (Step-by-Step Method): To identify a melodic interval, follow these two crucial steps: Step 1: Determine the Interval Number Count the number of scale degrees (lines and spaces on the staff, or solfa syllables) from the lower note to the upper note, including both the starting and ending notes.
Example 1: Notes: C to E (ascending)
Counting: C (1st), D (2nd), E (3rd) = a 3rd Example 2: Notes: G to C (descending)
Counting: G (1st), F (2nd), E (3rd), C (4th) = a 4th Possible numbers are: Unison (same note), 2nd, 3rd, 4th, 5th, 6th, 7th, Octave (8th).
Step 2: Determine the Interval Quality The quality (Perfect, Major, Minor) depends on the exact number of semitones between the two notes. It is easiest to refer to a major scale for determining quality.
Reference Point: The Major Scale Assume the lower note of the interval is the tonic (root) of a major scale. The intervals formed between the tonic and other notes of its own major scale are either Perfect or Major.
Perfect Intervals: Unison (1st), 4th, 5th, determination method. The concept of inversion can be a helpful mental shortcut for some, but a direct comparison to the major scale of the lower note (E to A is P4) also works for finding the quality, then applying it to the descending interval A to E.
5. Independent Practice (Questions Only)
Instruction: For each pair of notes or melodic fragment, identify the melodic interval, stating its number, quality, and direction (ascending or descending).
1. C to G (ascending)
2. E to C (descending)
3. F to A (ascending)
4. B to F# (ascending)
5. G to D (descending)
6. D to Eb (ascending)
7. A to G (descending)
8. C to B (ascending)
9. The first two notes of the melody 'Sò-do-mi-so' (Sò to Dò, ascending, assuming Do is C)
1
0. The interval between the lowest and highest note in the phrase "mi-re-do" (mi to do, descending)
6. Evaluation and Assessment Formative Assessment: Observation: During guided practice and student activities, the teacher observes students' ability to count interval numbers and apply the major scale reference.
Questioning: Pose direct questions to individual students during explanation and demonstration sections to gauge understanding of definitions and steps.
Quick Checks: Administer short, unannounced quizzes with 2-3 interval identification questions.
Peer Review: Students identify intervals for each other's written examples and provide feedback. Summative Assessment (Aligned to Evaluation Guide): Instructions: For each of the given melodies, identify and name the melodic interval between the first two notes. Then, identify the melodic interval between the lowest and the highest tone played or implied in the entire short melody. Clearly state the interval number, quality, and direction.
Question 1: Melody: C - E - G a) Identify the interval between C and E. b) Identify the interval between the lowest tone (C) and the highest tone (G).
Question 2: Melody: G - F - E - D a) Identify the interval between G and F. b) Identify the interval between the lowest tone (D) and the highest tone (G).
Question 3: Melody: d - r - m - f (assuming C Major, so C-D-E-F) a) Identify the interval between d and r. b) Identify the interval between the lowest tone (d) and the highest tone (f).
Question 4: Melody: A - G - F# - G a) Identify the interval between A and G. b) Identify the interval between the lowest tone (F#) and the highest tone (A).
Marking Scheme/Rubric: For each interval identified (e.g., C to E in Q1a): Correct Number (1 mark) Correct Quality (1 mark)
Correct Direction (1 mark)
Total: 3 marks per interval. (e.g., Q1 has two intervals, so 6 marks total).
7. Real-life Applications / Integration
1. Nigerian Folk Music Analysis: Many traditional Nigerian folk songs feature distinct melodic contours. By identifying intervals, students can analyze how certain intervals (e.g., frequent 2nds, 3rds, or 4ths) contribute to the unique sound and emotional character of a Yoruba folk song, a Hausa praise chant, or an Igbo lament. For instance, the prevalence of small intervals might suggest a conversational or storytelling quality, while larger intervals could signify excitement or grandeur.
2. Improvisation in Local Music Styles: In genres like Juju, Highlife, or Afrobeat, musicians often improvise melodies over chord progressions. A strong understanding of melodic intervals allows musicians to create harmonically coherent and melodically interesting solos and fills. They can intentionally use specific intervals (e.g., a minor 3rd for bluesy flavour, or a perfect 4th for a solid, grounding sound) that are characteristic of the style.
3. Appreciation of Choral Music: Nigerian churches and schools have vibrant choral traditions. When singing in a choir, especially in a cappella settings, singers constantly adjust their pitch based on the melodic intervals they are singing relative to other parts. Identifying intervals helps them to stay in tune and contributes to the overall blend and harmony of the ensemble, whether it's a popular gospel tune or a classical piece.
8. Differentiation, Remediation and Extension 8.
1. Differentiation (for Struggling Learners): * Visual Aids: Utilize large, clear diagrams of the musical staff and a piano keyboard during explanations. Use colour-coding for ascending/descending or have vibrant choral traditions. When singing in a choir, especially in a cappella settings, singers constantly adjust their pitch based on the melodic intervals they are singing relative to other parts. Identifying intervals helps them to stay in tune and contributes to the overall blend and harmony of the ensemble, whether it's a popular gospel tune or a classical piece.
8. Differentiation, Remediation and Extension 8.
1. Differentiation (for Struggling Learners): Visual Aids: Utilize large, clear diagrams of the musical staff and a piano keyboard during explanations. Use colour-coding for ascending/descending or for different interval types.
Solfa Emphasis: For students more comfortable with solfa notation, introduce intervals primarily through solfa syllables (e.g., d-r, d-m, d-f) before translating to staff notation.
Focus on Small Intervals: Initially focus only on 2nds, 3rds, and 4ths, and their qualities (Major, Minor, Perfect) before introducing 5ths, 6ths, 7ths, and octaves.
Reference Charts: Provide students with a simplified chart of common diatonic intervals and their semitone counts from the tonic of a major scale (e.g., a chart similar to the summary table provided in Section 2.6).
Kinesthetic Learning: Encourage students to physically move their hand up or down a scale as they count the interval degrees. 8.
2. Remediation (for Learners Needing Extra Support): One-on-One/Small Group Coaching: The teacher or a high-achieving peer can work directly with struggling students, providing individualized guidance on interval counting and quality determination.
Repetitive Practice: Provide additional worksheets with a higher volume of simple melodic interval identification tasks.
Aural Drills: Conduct intensive aural drills where students listen to played intervals and immediately identify them by number and direction, gradually adding quality.
Major Scale Reinforcement: Revisit the construction of major scales, as this is the fundamental reference point for interval quality. Ensure students can confidently build any major scale before attempting to identify intervals from it. 8.
3. Extension (for High-Achieving Learners): Compound Intervals: Introduce the concept of compound intervals (intervals larger than an octave, e.g., a 9th, 10th) and how to reduce them to their simple form.
Augmented and Diminished Intervals: Introduce augmented and diminished diatonic intervals within the context of specific melodic phrases or secondary dominant chords (e.g., augmented 4th, diminished 5th, diminished 7th) – explain how they are formed by adding/subtracting a semitone from perfect/major/minor intervals.
Interval Inversion: Explain how intervals invert (e.g., a Major 3rd inverts to a minor 6th), and the rules governing their qualities after inversion.
Intervals in Melodic Dictation: Challenge students to transcribe short melodic phrases by ear, focusing on accurately representing the melodic intervals heard.
Composing with Intervals: Encourage students to compose a short melody using a specific set of prescribed intervals (e.g., a melody consisting only of major 2nds and perfect 4ths).