In Lesson 5 the C Major scale was introduced. The G major scale starts and ends on the note G, and contains an F# note instead of an F note. Play the following G major scale and notice that it still has the familiar sound Do Re Mi Fa So La Ti Do.
The key of C major was discussed in Lesson 5, under Key of C Major . Songs that use notes from the C major scale are said to be in the key of C. Similarly, songs that use notes from the G major scale are said to be in the key of G major. Songs in the key of G will contain F sharp notes.