Major scale

The major scale (or Ionian mode) is one of the most commonly used musical scales, especially in Western music. It is one of the diatonic scales. Like many musical scales, it is made up of seven notes: the eighth duplicates the first at double its frequency so that it is called a higher octave of the same note (from Latin "octavus", the eighth).

Major scale
ModesI, II, III, IV, V, VI, VII
Component pitches
C, D, E, F, G, A, B
Qualities
Number of pitch classes7
Maximal evenness
Forte number7-35
Complement5-35
Major scales beginning with white keys

The simplest major scale to write is C major, the only major scale not requiring sharps or flats:

The major scale had a central importance in Western music, particularly in the common practice period and in popular music.

In Carnatic music, it is known as Sankarabharanam. In Hindustani classical music, it is known as Bilaval.