Octave: Definition, Function & Examples - Video & Lesson Transcript | Study.com
Vector proportionate illustration of one octave (12 notes) piano keyboard. Vector realistic proportionate illustration of one | CanStock
C Major Scale Octave On Staff And Keyboard Stock Illustration - Download Image Now - iStock
C major scale, octave on keyboard and staff. One octave, shown on keyboard keys and on a five-line staff with treble clef and whole notes Stock Photo - Alamy