Session 7: The C Major Scale & First Chord

Overview

• Phase: 2 — Building Blocks
• Duration: 1 hour
• Prerequisites: Completed Sessions 1-6. Can play “Twinkle Twinkle Little Star” with both hands (or at least Measures 1-4). Comfortable with C position in both hands.

Learning Objectives

By the end of this session, you will be able to:

1. Explain whole steps and half steps on the keyboard
2. Play the C major scale with RH using correct fingering (thumb-under technique)
3. Play the C major scale with LH using correct fingering
4. Build and play a C major chord (triad) with both RH and LH
5. Play a simple melody with a C chord drone accompaniment

Materials Needed

• Casio CT-X9000IN keyboard (Grand Piano tone — Tone 000, metronome ready)
• This lesson plan open beside you

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Warm-Up (5 minutes)

Both-Hands Parallel Motion

Both hands in C position:

X:1 T:Both-Hands Parallel Motion Warm-Up M:4/4 L:1/4 K:C V:1 clef=treble name="RH" V:2 clef=bass name="LH" V:1 "1"C "2"D "3"E "4"F | "5"G "4"F "3"E "2"D | "1"C z3 |] V:2 "5"C, "4"D, "3"E, "2"F, | "1"G, "2"F, "3"E, "4"D, | "5"C, z3 |]

Play 3 times at 60 BPM with metronome.

”Twinkle Twinkle” Quick Run

Play Measures 1-4 (both hands) once through. If the full 12 measures are solid, play the full piece once.

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Theory (10 minutes)

Whole Steps and Half Steps

Look at your keyboard. The smallest distance between two keys is called a half step. The next smallest distance is a whole step (= two half steps).

Half step: Two keys that are directly next to each other with NO key between them.

• E to F = half step (no black key between them)
• B to C = half step (no black key between them)
• C to C#/Db = half step (white to immediately adjacent black key)

Whole step: Two keys with exactly ONE key between them.

• C to D = whole step (C# is between them)
• D to E = whole step (D# is between them)
• E to F# = whole step (F is between them)

Play these on your keyboard and listen to the difference:

1. Half step: Play E(3) then F(4). Very close together — almost tense.
2. Whole step: Play C(1) then D(2). A little more space — more relaxed.

The C Major Scale Formula

A major scale follows a specific pattern of whole steps (W) and half steps (H):

W - W - H - W - W - W - H

Starting from C:

C --W--> D --W--> E --H--> F --W--> G --W--> A --W--> B --H--> C

This is the C major scale: C D E F G A B C

Notice: the C major scale uses ONLY white keys. This is why C major is the easiest major scale and the best one to learn first.

The half steps fall between E-F and B-C. Play the scale slowly and listen for the two places where the notes are closest together. You can hear the half steps — they sound “tighter.”

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Technique (15 minutes)

C Major Scale — Right Hand

The C major scale spans 8 notes (one octave), but you only have 5 fingers. The solution is the thumb-under technique: after finger 3 plays E, your thumb (1) tucks under your hand to play F, and then your fingers continue naturally.

RH C Major Scale Fingering:

Note: C D E F G A B C

Finger: 1 2 3 1 2 3 4 5

^ thumb goes UNDER finger 3

How to practice:

1. Place RH finger 1 on Middle C.
2. Play: C(1), D(2), E(3) — normal C position so far.
3. Now the key move: while finger 3 is still on E, pass your thumb (1) UNDER your hand to land on F. Your hand should glide smoothly — do not jerk or jump.
4. Continue: F(1), G(2), A(3), B(4), C(5).

Coming back down:

Note: C B A G F E D C

Finger: 5 4 3 2 1 3 2 1

^ finger 3 crosses OVER the thumb

Going down, when your thumb plays F, finger 3 crosses OVER the thumb to land on E. Then continue: D(2), C(1).

Practice the crossover points in isolation:

Cross-under: E(3) → F(1) → E(3) → F(1) — repeat 10 times slowly

Cross-over: F(1) → E(3) → F(1) → E(3) — repeat 10 times slowly

Then play the full scale ascending and descending. Use the metronome at 50 BPM. One note per click.

X:1 T:RH C Major Scale M:4/4 L:1/4 K:C "1"C "2"D "3"E "1"F | "2"G "3"A "4"B "5"c | "5"c "4"B "3"A "2"G | "1"F "3"E "2"D "1"C |]

Play 5 times up and down. The thumb-under should feel smoother each time.

C Major Scale — Left Hand

The LH scale fingering is a mirror of the RH, but the thumb-under happens at a different point:

LH C Major Scale Fingering:

Going up:

Note: C D E F G A B C

Finger: 5 4 3 2 1 3 2 1

^ finger 3 crosses OVER the thumb

Going down:

Note: C B A G F E D C

Finger: 1 2 3 1 2 3 4 5

^ thumb goes UNDER finger 3

Start with LH finger 5 on the C one octave below Middle C:

1. Play: C(5), D(4), E(3), F(2), G(1) — normal C position.
2. Now finger 3 crosses OVER the thumb to land on A.
3. Continue: A(3), B(2), C(1).

Practice the crossover point:

LH: G(1) → A(3) → G(1) → A(3) — repeat 10 times slowly

LH: A(3) → G(1) → A(3) → G(1) — repeat 10 times slowly

Then play the full LH scale:

X:1 T:LH C Major Scale M:4/4 L:1/4 K:C clef=bass "5"C, "4"D, "3"E, "2"F, | "1"G, "3"A, "2"B, "1"C | "1"C "2"B, "3"A, "1"G, | "2"F, "3"E, "4"D, "5"C, |]

Play 5 times up and down at 50 BPM.

The C Major Chord (Triad)

A chord is three or more notes played at the same time. The simplest chord is a triad — three notes.

The C major triad is built from the 1st, 3rd, and 5th notes of the C major scale:

• C (1st) — the root
• E (3rd) — the third
• G (5th) — the fifth

RH C Major Chord:

X:1 T:RH C Major Chord M:4/4 L:1/4 K:C "1-3-5"[CEG]4 |]

Place finger 1 on C, finger 3 on E, finger 5 on G. Press all three keys at exactly the same time. Hold for 4 beats. Release.

LH C Major Chord:

X:1 T:LH C Major Chord M:4/4 L:1/4 K:C clef=bass "5-3-1"[C,E,G,]4 |]

Place finger 5 on C (one octave below Middle C), finger 3 on E, finger 1 on G. Press all three. Hold for 4 beats. Release.

Play each hand’s chord 5 times. Listen to the sound — it is bright, stable, and happy. This is the sound of a major chord.

Both hands chord: Play the C major chord in both hands simultaneously. LH on the lower C-E-G, RH on the upper C-E-G. Hold for 4 beats. Feel the fullness of the sound.

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Repertoire (20 minutes)

“Melody with C Chord Drone” — Full Arrangement

This is a simple melody over a held C major chord — your first experience of melody + harmony.

Tempo: 60 BPM (metronome on) Time Signature: 4/4 Key: C major

The concept: Your LH holds the C major chord (C-E-G) as whole notes while your RH plays a simple melody above. This is the foundation of all pop, rock, and classical piano playing: melody in the right hand, harmony in the left.

X:1 T:Melody with C Chord Drone (Ode to Joy) M:4/4 L:1/4 K:C V:1 clef=treble name="RH" V:2 clef=bass name="LH" V:1 "3"E "3"E "4"F "5"G | "5"G "4"F "3"E "2"D | "1"C "1"C "2"D "3"E | "3"E3 "2"D | "3"E "3"E "4"F "5"G | "5"G "4"F "3"E "2"D | "1"C "1"C "2"D "3"E | "2"D2 "1"C z |] V:2 [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 | [C,E,G,]4 |]

You may recognize the RH melody — it is “Ode to Joy” from Session 3. Now you are playing it with harmonic accompaniment underneath.

Learning approach:

1. RH alone — Play the melody once through. It should feel familiar from Session 3.
2. LH alone — Just the C major chord, held for whole notes, 8 times. Easy.
3. Both hands, Measure 1 only — Press the LH chord, hold it, then play the RH melody. Repeat 5 times.
4. Both hands, Measures 1-4 — 3 times through.
5. Full piece, Measures 1-8 — Go for it.

Dynamics:

• Play the LH chord at a soft volume (piano).
• Play the RH melody at a medium volume (mezzo-forte).
• This creates “balance” — the melody sits on top of the harmony, just like in a real performance.

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Review & Homework (10 minutes)

Summary

Today you learned:

• Whole steps and half steps — the building blocks of scales
• The C major scale with proper fingering for both hands (including thumb-under/cross-over)
• The C major chord (C-E-G) — your first triad
• A melody with chord drone accompaniment — the beginning of real piano playing

Ear Training Exercise: Major vs. Minor Sound

Play the C major chord: C(1) + E(3) + G(5) with your RH. Listen. It sounds bright and happy.

Now play these three notes instead: C(1) + Eb(?) + G(5). The Eb is the black key between D and E — press it with finger 2. This is a C MINOR chord. Listen. It sounds darker, sadder, more serious.

Alternate between the two:

1. C major: C-E-G. Listen.
2. C minor: C-Eb-G. Listen.
3. Which sounds “happy”? (Major)
4. Which sounds “sad” or “mysterious”? (Minor)

You do not need to learn minor chords yet. This is just training your ear to hear the difference. Major vs. minor is one of the most fundamental sounds in all of music.

Self-Check Questions

1. What is the pattern of whole and half steps in a major scale? (Answer: W-W-H-W-W-W-H)
2. What three notes make up a C major chord? (Answer: C, E, G)
3. Why does the RH C major scale fingering use 1-2-3-1-2-3-4-5 instead of just 1-2-3-4-5? (Answer: Because the scale has 8 notes and you only have 5 fingers. The thumb-under technique lets your thumb pass under finger 3 to continue the scale.)

Practice Homework (Before Next Session)

• C major scale RH — Up and down, 5 times daily at 50 BPM. Focus on smooth thumb-under. Increase to 60 BPM when comfortable. (3 minutes daily)
• C major scale LH — Up and down, 5 times daily at 50 BPM. Focus on smooth cross-over. (3 minutes daily)
• C major chord — RH and LH, 5 repetitions each. Press all three notes simultaneously. (1 minute daily)
• “Melody with C Chord Drone” — Full 8 measures, 3 times through with metronome at 60 BPM. (5 minutes daily)
• “Twinkle Twinkle” — Full piece once daily to keep it polished. (2 minutes daily)

Total daily practice: approximately 15 minutes.

Common Mistakes to Watch For

• Thumb-under jerk: When the thumb passes under, the hand should glide smoothly. If you lift your hand to “jump” the thumb to F, you are doing it wrong. Keep the hand close to the keys and slide the thumb underneath. Practice the E(3)-to-F(1) transition in isolation.
• Uneven scale notes: All scale notes should be the same length and volume. Beginners often play some notes louder (usually the thumb notes) and some softer. Use the metronome and aim for absolute evenness.
• Chord notes not simultaneous: When playing the C major chord, all three notes must sound at exactly the same instant. If you hear a “roll” (notes sounding one after another), practice pressing all three fingers down together. Think of your hand as a single unit.
• Neglecting dynamics in the drone piece: The LH chord should be noticeably softer than the RH melody. If both are at the same volume, the chord covers the melody. Practice playing the LH softly and the RH firmly.

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CT-X9000IN Tips

Metronome for Scale Practice

Set the metronome to 50 BPM for scales. This feels excruciatingly slow, and that is the point. Slow practice with correct fingering builds the muscle memory that lets you play fast later.

Scale practice protocol with metronome:

1. Set to 50 BPM.
2. Play the C major scale ascending (8 notes, one per click) — 8 clicks.
3. At the top, play the descending scale — 8 clicks back down.
4. Repeat without stopping.
5. When you can play 5 repetitions at 50 BPM without a single wrong note or hesitation, increase to 55 BPM. Then 60. Then 66.

Never increase the tempo if you are making mistakes at the current tempo. Speed follows accuracy, never the other way around.