C# Major scale
3
5
7
10
The C# Major scale has the formula 1, 2, 3, 4, 5, 6, 7 with notes C#, D#, F, F#, G#, A#, C
The major scale, also known as Ionian scale, is a very popular diatonic scale. It is one of the most commonly used scales in the world. In Western music, it is preceived as sounding happy.