This is a very basic mandolin lesson designed to cover the G major scale and two chords.
The G Major Scale
It is very important to have a firm knowledge of the various scale shapes used to play the Mandolin as forms the foundation of almost all the pieces you will play. Try playing up and down the scale slowly and smoothly, insuring all the notes come out sounding nice. Avoid making any buzzing noises by pressing too lightly, or fretting the notes too heavily causing them to go out of tune and making your hand seize up!
The diagram below shows the scale shape in what is called tab. Each line represents a pair of strings from low G, through D, then A up and to the high E. The number on each line indicates the frets to be pressed to give the complete ascending scale.
For every fret 2 note use finger one
For every fret 3 or 4 note use finger two
For every fret 5 note use finger three
Start by playing the open G with a down stroke with your pick. The second note should be played as an up stroke, and the rest played following this picking pattern of alternating your down and up strokes.
The Chords
The G major chord is played using finger one on the 2nd fret of the A string and finger two on the 3rd fret of the E string. This can be written as 0 0 2 3 (open string, open string, 2nd fret, 3rd fret). Hit all the strings together to produce the chord.
The D major chord is played using finger one on the 2nd fret of the low G and finger two on fret 2 of the high E string. This can be written as 2 0 0 2 (2nd fret, open, open, 2nd). Again, hit all the strings together to form the chord.
Practice strumming the chords by holding the shapes down and moving the pick alternately up and down across all the strings. Insure all the notes are being fretted properly by playing the chords one string at a time.
The Video
Hopefully the video will make the concepts described above clear!