G Major & E Minor (E shape) Scale
Practise your G major and E minor scales ascending and descending.
Improvise a melody using the G major scale over this track.
G / D / C / G D x 2
Em / D / Em / C D
G / D / C / G D x 2
Then play chords in that key with melodies without the track.
Improvise a melody using the E minor scale over this track.
Em C G / Em C G D x 2
Am D G Am / D /
Em C G / Em C G D
Then play chords in that key with melodies without the track
CHORDS OF A KEY MOVEABLE SHAPE

Above you can see one of the most useful major scale shapes that you can use to visualize the chords in a key. The square notes 1 4 5 represent the major chords and the 2 3 6 notes represent the minor chords.
1 Major
2 minor
3 minor
4 Major
5 Major
6 minor
7 minor 7 b5