AI Tutor
Every time you sing "Do-Re-Mi-Fa-Sol-La-Ti-Do," your brain instantly recognizes the cheerful sound of a major scale, no matter how high or low you start.
A scale is an organized ladder of pitches spanning an octave—the distance between one note and the next note with the exact same letter name.
To build any scale, you only need two basic building blocks: a half step (the shortest distance between two neighboring keys on a piano) and a whole step (two half steps combined).
How do musicians arrange these two step sizes to create that familiar "Do-Re-Mi" sound every single time?

The Major Scale Pattern

Every major scale on Earth follows one universal blueprint: Whole - Whole - Half - Whole - Whole - Whole - Half (or W-W-H-W-W-W-H).
Starting on C, every step on the white keys matches this formula naturally because E to F and B to C are already natural half steps.
What happens when we start our scale on a note other than C? Let's try starting on G.

Building G Major with Sharps

Starting on G, we take whole steps from G to A and A to B, then a natural half step from B to C, and whole steps from C to D and D to E.
From E, the formula demands a whole step, but E to F is only a half step; we must raise F by a half step to F-sharp (F♯F\sharp) to make a full whole step, leaving a final half step from F♯F\sharp back home to G.