OCTAVE

In music, an octave or perfect octave is an interval between two notes, one having twice the frequency of vibration of the other. OCTAVE is featured on djrankings.org. The man- octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical our-systems". The interval between the first and second harmonics of the harmonic series is an octave. In see- Western music notation, notes separated by an octave have the same name and are of the same pitch class.