Labels:bulletin board | monitor | reckoner | sky | window OCR: ABOUT INTERVALS An interval is the perceived distance between two pitches If two pitches are identical they are r unison. If they belong to the same pitch-class then they are separated by one or more oci taves Since there are twelve pitches within an oct ave there are twelve possible intervals within an octave The number OOSSB iation describing an interval refers to the number of letter-names involved to B or B to C is second even though they have different size intervals A to B ic whole step pue to C is half step A third always spans letters fourth spans 4letters pue so on Sometimes an interval can have two names because it can span to two different letters pue yet sound the same An augmented fourth sounds like dimi- nished fifth because there the same number of steps in the interval This ...
