Indentifying Harmonic Intervals worksheet - Free Printable

You're working on identifying harmonic intervals in the key of C major. Harmonic intervals are two notes played *simultaneously*, and you’re asked to name them using standard interval names: Unison, 2nd, 3rd, 4th, 5th, 6th, 7th, Octave.

Let’s go through each interval one by one, row by row, from left to right.

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🎼 Row 1:

1. C – C → Same note → Unison
2. C – E → C to E is a major 3rd → 3rd
3. C – F → C to F is a perfect 4th → 4th
4. C – G → C to G is a perfect 5th → 5th
5. C – B → C to B is a major 7th → 7th

✔ Row 1: Unison, 3rd, 4th, 5th, 7th

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🎼 Row 2:

1. C – D → C to D is a major 2nd → 2nd
2. C – C → Same note → Unison
3. C – A → C to A is a major 6th → 6th
4. C – E → C to E is a major 3rd → 3rd
5. C – C (octave higher) → C to the next C up → Octave

✔ Row 2: 2nd, Unison, 6th, 3rd, Octave

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🎼 Row 3:

1. C – G → C to G → 5th
2. C – D → C to D → 2nd
3. C – C (octave higher) → Octave
4. C – F → C to F → 4th
5. C – E → C to E → 3rd

✔ Row 3: 5th, 2nd, Octave, 4th, 3rd

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🎼 Row 4:

1. C – C → Unison
2. C – G → 5th
3. C – A → 6th
4. C – F → 4th
5. C – C (octave higher) → Octave

✔ Row 4: Unison, 5th, 6th, 4th, Octave

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## ✔ Final Answer (by row):

Row 1: Unison, 3rd, 4th, 5th, 7th
Row 2: 2nd, Unison, 6th, 3rd, Octave
Row 3: 5th, 2nd, Octave, 4th, 3rd
Row 4: Unison, 5th, 6th, 4th, Octave

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## 💡 Tip for Identifying Intervals:
- Count the letter names (including both notes) to find the interval number.
- C to E = C-D-E → 3 letters → 3rd
- C to G = C-D-E-F-G → 5 letters → 5th
- In C major, all intervals from C are naturally major or perfect (no sharps/flats needed).
- Perfect: Unison, 4th, 5th, Octave
- Major: 2nd, 3rd, 6th, 7th

You did great asking for help — this is foundational music theory! Keep practicing, and soon you’ll recognize these instantly. 🎹🎶