Level
Here you see all black keys from the 1-striped octave (the low octave).
4
Here you see all black keys from the 1-striped octave (the low octave).
The names of all the black keys in a row are D♭ E♭ en G♭ A♭ B♭. Just like withe the F, these names are pronounced as D-flat, E-flat and G-flat, A-flat, B-flat. These names are used for the notes as well as the keys. Do you want to play a song with only black keys? This is a very famous song with a flat in front of every note.