Class: Senior Secondary School 1 (SS1, SS 1, SSS1, SSS 1)
Term: 2nd Term
Week: 4
Age: 15 years
Duration: 45 minutes
Subject: Music
Curriculum Theme: Music Theory
Previous Lesson: Intervals: Tones, Semitones and Major-Minor Differences.
Topic: Transposition.
Subject Matter: Transposing a melody from one key to another, transposing up a fourth, transposing down a fifth, writing transposed melody in treble stave.

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:

Define transposition in music.
Identify intervals used in transposition.
Explain the steps involved in transposing a melody.

Affective Domain:

Appreciate the importance of transposition in music performance and composition.
Develop accuracy and attention to detail when transposing.
Show interest in exploring different keys and their relationships.

Psychomotor Domain:

Transpose a given melody from one key to another.
Transpose a melody up a fourth or down a fifth accurately.
Write a transposed melody correctly in the treble stave.

Collaborate with peers on transposition exercises.
Share and discuss their transposed melodies with classmates.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Music.
State Unified Scheme of Work for Senior Secondary Music.
Anyanwu, E. (2010). Basic Music Theory for Senior Secondary Schools. University Press PLC.
Keyboard or pitch reference.
Transposition exercises.
Staff paper.

Instructional Materials

The teacher will teach this lesson with the aid of:

A keyboard or a pitch reference instrument.
Printed transposition exercises or examples on a whiteboard/projector.
Staff paper and pencils.
Charts showing key signatures and intervals.

Rationale for the Lesson

This lesson helps pupils understand how to move a piece of music from one key to another, which is important for singers and instrumentalists. It enables them to adjust music to suit different vocal ranges or instruments, making them more versatile musicians.

Prerequisite/Previous Knowledge

Pupils are expected to have prior knowledge of musical notes, scales, key signatures, intervals, and clefs (especially treble clef).

Lesson Content/Board Summary

Transposition

Definition of Transposition

Transposition is the process of moving a collection of notes (a melody or a chord progression) up or down in pitch by a constant interval, while maintaining the same melodic and harmonic relationships. It changes the key of a piece of music.

Steps for Transposing a Melody

The following are the steps to transpose a melody:

Identify the original key of the melody.
Determine the interval by which the melody is to be transposed (e.g., up a fourth, down a fifth).
Identify the new key based on the original key and the transposition interval.
Adjust the key signature to reflect the new key.
Transpose each note of the melody by the specified interval, ensuring the melodic contour remains the same.
Write the new notes accurately on the staff.

Transposing Up a Fourth

To transpose a melody up a fourth, every note in the melody is moved up by four scale degrees from its original position. The new key will be a perfect fourth above the original key.

For example, if a melody is in C major and transposed up a perfect fourth, the new key will be F major.

Transposing Down a Fifth

To transpose a melody down a fifth, every note in the melody is moved down by five scale degrees from its original position. The new key will be a perfect fifth below the original key.

For example, if a melody is in C major and transposed down a perfect fifth, the new key will be F major (C down a fifth is F, considering the key signature change).

Writing Transposed Melody in Treble Stave

When writing a transposed melody in the treble stave, it is important to:

Ensure the correct key signature for the new key is placed at the beginning of the staff.
Write each transposed note clearly on the correct line or space.
Maintain the original rhythm of the melody.
Pay attention to accidentals (sharps, flats, naturals) and how they change in the new key.

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and reviews previous knowledge on key signatures and intervals by asking questions like, “What is a key signature?” and “Can anyone identify a perfect fifth interval?” The teacher then introduces the topic of transposition by asking, “Have you ever heard a song sung in a different pitch to suit a singer?”
Pupils’ Activity: Pupils respond to questions and share their understanding of key signatures and intervals. They listen attentively to the introduction of the new topic.
Learning Point: Pupils recall previous knowledge and are introduced to the concept of changing a song’s key.

Step 2: Explanation of Transposition

Time: 8 minutes
Teaching Skill: Explanation/Definition
Teacher’s Activity: The teacher defines transposition, explaining its purpose in music. The teacher uses the keyboard to demonstrate a simple melody played in two different keys to illustrate the concept clearly.
Pupils’ Activity: Pupils listen to the definition and observe the demonstration, asking questions for clarification.
Learning Point: Pupils understand the meaning and practical application of transposition.

Step 3: Steps for Transposing

Time: 8 minutes
Teaching Skill: Demonstration/Instruction
Teacher’s Activity: The teacher outlines the systematic steps for transposing a melody on the board, explaining each step with a simple example. For instance, transposing a C major scale up a second to D major.
Pupils’ Activity: Pupils copy the steps into their notebooks and follow the teacher’s demonstration, asking questions about each step.
Learning Point: Pupils learn the methodical approach to transposing a musical passage.

Step 4: Transposing Up a Fourth

Time: 8 minutes
Teaching Skill: Guided Practice
Teacher’s Activity: The teacher provides a short, simple melody (e.g., “Mary Had a Little Lamb” in C major) and guides pupils through transposing it up a perfect fourth to F major. The teacher emphasizes changing the key signature and each individual note.
Pupils’ Activity: Pupils actively participate by identifying the new key, writing the new key signature, and transposing notes on staff paper under the teacher’s guidance.
Learning Point: Pupils gain practical experience in transposing a melody up a perfect fourth.

Step 5: Transposing Down a Fifth

Time: 8 minutes
Teaching Skill: Guided Practice
Teacher’s Activity: The teacher presents another short melody (e.g., a simple phrase in G major) and guides pupils through transposing it down a perfect fifth to C major. The teacher highlights the adjustment of key signatures and accidentals.
Pupils’ Activity: Pupils work on transposing the melody down a fifth on their staff paper, applying the steps learned, and seeking assistance when needed.
Learning Point: Pupils practice and reinforce their ability to transpose a melody down a perfect fifth.

Step 6: Writing Transposed Melody in Treble Stave

Time: 6 minutes
Teaching Skill: Practical Application
Teacher’s Activity: The teacher emphasizes the importance of clear and accurate notation when writing the transposed melody in the treble stave. The teacher checks pupils’ work from previous steps, offering corrections on note placement and key signatures.
Pupils’ Activity: Pupils review their written transposed melodies, making any necessary corrections to ensure proper notation in the treble stave.
Learning Point: Pupils develop precision in writing transposed melodies, focusing on correct notation and key signatures.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define transposition in your own words.
List three steps involved in transposing a melody.
If a melody is in D major, what would be the new key if you transpose it up a perfect fourth?
If a melody is in C major, what would be the new key if you transpose it down a perfect fifth?

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Closure
Teacher’s Activity: The teacher summarizes the key points of the lesson on transposition and assigns homework: “Transpose a given 4-bar melody from C major up a perfect fourth and write it in the treble stave.”
Pupils’ Activity: Pupils listen to the summary and copy down the homework assignment.
Learning Point: Pupils consolidate their learning and are given an opportunity for further practice.

Lesson Keywords

Transposition – The process of moving a piece of music from one key to another by a constant interval.
Key Signature – A set of sharps or flats placed at the beginning of a staff to indicate the key of a piece of music.
Interval – The distance in pitch between two notes.
Stave – The five horizontal lines on which musical notes are written.
Treble Clef – A symbol placed on the staff to indicate that the second line from the bottom is G above middle C.

Differentiation

For pupils who grasp the concept quickly, the teacher can provide more complex melodies or ask them to transpose across more challenging intervals or clefs. For pupils needing more support, the teacher can offer simpler melodies, provide interval charts, or work with them individually during practice sessions.

Note for teachers using this lesson plan

Ensure that pupils have a strong foundation in scales, key signatures, and intervals before introducing transposition. Use visual aids extensively and allow ample time for practical exercises. Encourage pupils to use a keyboard or pitch reference to hear the transposed melodies.