---
title: 'The Major Scale Unlocked: Tone-Tone-Semitone Explained'
source: 'https://youtube.com/watch?v=1eBvE_CKrTA'
video_id: '1eBvE_CKrTA'
date: 2026-07-31
duration_sec: 85
---

# The Major Scale Unlocked: Tone-Tone-Semitone Explained

> Source: [The Major Scale Unlocked: Tone-Tone-Semitone Explained](https://youtube.com/watch?v=1eBvE_CKrTA)

## Summary

This video breaks down the major scale formula, revealing the simple interval pattern of tones and semitones that defines every major key. Using C major as the reference example, it demonstrates how the T-T-S-T-T-T-S sequence can be applied to build a major scale starting on any note.

### Key Points

- **The Power of the Formula** [00:07] — The interval pattern between notes is the key to understanding the major scale. The formula is called 'tone, tone, semitone' and it repeats to form the scale.
- **C Major: Tones from C to E** [00:22] — In C major, the distance from C to D is a tone, and from D to E is also a tone. This establishes the beginning of the T-T-S pattern.
- **The First Semitone: E to F** [00:34] — E to F is a semitone, completing the first T-T-S segment. Then F to G, G to A, and A to B are all tones.
- **Completing C Major with B to C** [00:50] — The final semitone from B to C completes the C major scale. The resulting pattern is tone, tone, semitone, tone, tone, tone, semitone (T-T-S-T-T-T-S).
- **Applying the Formula to Any Key** [01:05] — The T-T-S-T-T-T-S formula works for every major key. For example, the key of F major follows the same interval pattern.

### Conclusion

The major scale is unlocked by memorizing the simple interval pattern T-T-S-T-T-T-S. Once you know it, you can construct a major scale starting on any note.

## Transcript

before, give me a minute to explain how powerful and important this formula is. referring to the distance between the notes in the major scale. So if we take notes in the major scale. So if we take the key of C major, we have C going to
D. That distance is a tone. We then have D going to E. That distance is a tone. We then have E going to F. That distance
is a semmit tone. So that gives us our tone, tone, semmit tone. Then we have the distance between F and G, a tone. The distance between G and A, a tone. The distance between A and B, another tone. And finally, the semmit tone
between B and C. And that gives us the C major scale. [Music] So that was the key of C. But the tone tone semmit tone tone tone tone semmit tone formula gives us the intervals
between the notes in any key, any major key. So if we went to the key of F, we'd key. So if we went to the key of F, we'd have a tone, a tone, a semmit tone, a have a tone, a tone, a semmit tone, a tone, a tone, a tone, a semmit tone.