Portion of the music keyboard. Middle C on the piano is C4 and A4 is... | Download Scientific Diagram
![Middle C on a piano keyboard, learning aid and cheat sheet Metal Print by Peter Hermes Furian - Pixels Middle C on a piano keyboard, learning aid and cheat sheet Metal Print by Peter Hermes Furian - Pixels](https://render.fineartamerica.com/images/rendered/default/metal-print/10/6.5/break/images/artworkimages/medium/3/middle-c-on-a-piano-keyboard-learning-aid-and-cheat-sheet-peter-hermes-furian.jpg)
Middle C on a piano keyboard, learning aid and cheat sheet Metal Print by Peter Hermes Furian - Pixels
![File:Piano C key (Middle C or C4 Played on a Kurzweil PC3K6 MIDI controller).jpg - Wikimedia Commons File:Piano C key (Middle C or C4 Played on a Kurzweil PC3K6 MIDI controller).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/5/59/Piano_C_key_%28Middle_C_or_C4_Played_on_a_Kurzweil_PC3K6_MIDI_controller%29.jpg)
File:Piano C key (Middle C or C4 Played on a Kurzweil PC3K6 MIDI controller).jpg - Wikimedia Commons
![Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef. Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef.](https://solitaryroad.com/c1060/ole1.gif)