Soft Treble

Music is melody to the ear and is created on the basis of musical notes or notations Octave refers to the period or interval in the pitch of musical notes. Some are with high frequency and the others are half the frequency. Octave corresponds to the 8th full pitch above any musical note or below it. When the octave is above the specified musical note, it means it is doubled in vibrations and designated as 8va whereas for the octave lesser than the specified musical note it is reduced to half and designated as 8vb. The reason for having an octave in music is because human ear would be unable to perceive the difference between notes. P8 means the octave is a perfect one. The term octave has other connotations too.