Major Scales

Scales refer to a series of notes that go in an ascending and descending manner. The major scale is the foundation from which all other scales are formed. A C major scale begins with a C and ends with a C. The same rule applies with the rest of the keys where a D Major Scale begins and ends with a D and so on. The notes on a major scale is numbered from 1 to 8, this signifies the intervals.

Major Scale in Every Key
C = C - D - E - F - G - A - B - C
D = D - E - F# - G - A - B - C# - D
E = E - F# - G# - A - B - C# - D# - E
F = F - G - A - Bb - C - D - E - F
G = G - A - B - C - D - E - F# - G
A = A - B - C# - D - E - F# - G# - A
B = B - C# - D# - E - F# - G# - A# - B
C# = C# - D# - E# (=F) - F# - G# - A# - B# (=C) - C#
Db = Db - Eb - F - Gb - Ab - Bb - C - Db
Eb = Eb - F - G - Ab - Bb - C - D -Eb
F# = F# - G# - A# - B - C# - D# - E# (=F) - F#
Gb = Gb - Ab - Bb - Cb (=B) - Db - Eb - F - Gb
Ab = Ab - Bb - C - Db - Eb - F - G - Ab
Bb = Bb - C - D - Eb - F - G - A - Bb

To simplify, you can memorize this formula to form a major scale = whole step - whole step - half step - whole step - whole step - whole step - half step or w - w - h - w - w - w - h

By Espie Estrella, About.com