The F major scale starts and ends on the note F and contains a B flat (Bb) note. Written here are two octaves of the F major scale. In the F major scale, a Bb note must be used instead of a B note in order to keep the correct pattern of tones and semitones for the major scale.
As you will have noticed with the scales of G major and F major, major scales starting on different notes are simply higher or lower versions of the same sequence of sounds. This is because they always use the same pattern of tones and semitones. It is important to memorize this pattern, which is shown here.
The semitones are always found between the 3rd and 4th, and 7th and 8th degrees of the scale. All the other notes are a tone apart. By simply following the pattern of tones and semitones, it is possible to construct a major scale starting on any note. The scale will be named by the note it starts on. The following example demonstrates three more major scales.