Question

What is an octave
Please tell me in brief

Answer 1

Answer:

a series of 8 notes occupieng the interval beetwen the two notes,one having twice or half the frequency of vibration of other a group or stanza of eight lines ; an octet

Answer 2

Answer:

In music, an octave or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The 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 systems". The interval between the first and second harmonics of the harmonic series is an octave.

In music notation, notes separated by an octave (or multiple octaves) have the same letter name and are of the same pitch class.

Explanation: