What is the difference in pitch between two notes music?

In music, pitch refers to the highness or lowness of a sound, determined by the frequency of its sound waves. The difference between two notes in terms of pitch is measured in semitones. A semitone, also called a half step or half tone, is the smallest interval between two adjacent pitches in Western musical notation.

Semitones can be calculated by counting the number of half steps between the two notes on a musical scale. The standard Western musical scale consists of twelve semitones, arranged in chromatic order, from C to B. Each whole tone, also known as a whole step, consists of two semitones.

The difference in pitch between two notes can also be expressed in terms of musical intervals. An interval is the distance between two notes, regardless of their octave placement. Common intervals include the octave (eight semitones), perfect fifth (seven semitones), perfect fourth (five semitones), major third (four semitones), minor third (three semitones), major second (two semitones), and minor second (one semitone).

Understanding pitch differences and musical intervals is essential in creating melodies, writing harmonies, and composing music in general. It allows musicians to create specific sonic relationships and convey musical ideas effectively.