Back to worksheetsMusic Production · Music Theory
MIDI Notes, Octaves and Frequency
MIDI note numbers identify keys. Frequency tells you how fast a sound vibrates. One octave spans 12 semitones.
Listen
Play each example here, or download it as an MP3 (audio) or a MIDI file.
- A3 to A40:04
- A4 to A50:04
- C4 to C5 · every semitone0:11
Download all
Free to use in your own lessons and practice. Made by the teachers at Tissimo.