Here are seven positions of the C major scale shown with three notes per string and with alternating notes highlighted. We show the odd numbered notes and even numbered notes for each position separately. The result gives the major scale in diatonic thirds. Notice that the notes of the even half of one position match the notes of the odd half of the next position, but with a different fingering.
Within these patterns, you will find arpeggios of all diatonic chords, including all triads, sevenths, ninths, elevenths, and thirteenths. Because they are diatonic, these chords naturally include all flat thirds, flat sevens, flat nines, sharp elevens, etc, appropriate to each scale degree. To play an arbitrary extended arpeggio, choose a position, find your root within it, and commence to play up the pattern.
Color indicates a suggested fingering with the index finger in red, middle in orange, ring finger in yellow, and pinky in green. The 2-1-2-1-2-1 and 1-2-1-2-1-2 patterns resulting from the three-note-per-string positions makes these easy to learn, and the presence of 9 notes in each position makes them easy to practice in 4/4 time.
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