Book 1 progresses in steps from a single open string to the scale of D major. One divergence from the usual approach is that the note G is taught after E but before F#. This better develops the left hand position especially for cellists. The tunes i n this section of the tutor are based on the minor 3rd interval and correlate with the Kodaly method in classroom music. As t he primary intention of this tutor is for group tuition of mixed string instruments