The major scale is a diatonic scale consisting of seven different notes, arranged in a specific pattern of whole and half steps (also known as tones and semitones). The pattern of the major scale is: whole, whole, half, whole, whole, whole, half. This pattern is also commonly known as W-W-H-W-W-W-H.
In Western music, the major scale is the most commonly used scale and is considered the "default" scale for many genres of music. It is often used as the basis for melody, harmony, and chord progressions.
The major scale can be transposed to any key by starting on a different note and applying the same pattern of whole and half steps. For example, the C major scale consists of the notes C, D, E, F, G, A, and B, while the G major scale consists of the notes G, A, B, C, D, E, and F#.