So far on the blog we have looked at the building blocks of music: We know that music is a combination of sound and silence of varying pitches and durations that are notated on lines and spaces. There are different ways to count and write rhythms and they center on the 2 feel and the 3 feel at their core. There are different combinations of pitches that sound good together called scales, and there are many different types of scales. Lastly, within each scale we can get different effects by starting on different scale degrees other than the tonic which is called diatonic modes. With all this information about notes we have neglected to identify how to express the distance between one note and the next – we express these distances using intervals.