D double flat

The double flat (𝄫) lowers a note by a whole step, and looks like two flats glued together. Here is an example using double flats. Note that, like double sharp, or any accidentals, a double flat cancel all previous accidentals, and is cancelled by any accidentals.

D♭ (D-flat) is a musical note lying a diatonic semitone above C and a chromatic semitone below D. It is thus enharmonic to C♯. In the French solfège it is known as re bémol. It is the second semitone of the solfège.

C double-sharp is a whole step higher than C, which is the D key on the piano keyboard. E double-flat is a whole step lower than E. It is also the D key on the piano keyboard. C double-sharp, E double-flat and D are enharmonic equivalent or enharmonic notes.

So they're not like terribly. Difficult but we do have to get used to reading them. And get used to playing them.

Double accidentals and enharmonic equivalent notes An enharmonic note is a note that sounds the same as another note but is spelt differently. For example, A double flat is the enharmonic equivalent of the G natural note.

And a double flat. Remember n harmonic notes. This b double flat will sound the same as a the e double flat will sound the same as d. And a double flat will sound the same as g.

music. : the note a semitone below B.

why did (nonstandard) Contraction of why did. Why'd he wanna go and do a thing like that?

The musical note "B" preceded by two flat (♭♭) symbols. The effect of each flat symbol (♭) lowers the pitch of the indicated note a semitone (or a half step), so B double flat is the pitch "B" lowered by two semitones (two half steps).

The musical note "D" preceded a double sharp (𝄪) symbol. The effect of the double sharp symbol raises the pitch of the indicated note by two semitones (two half steps). The resultant pitch would sound the same as the pitch "E".

Lower or a whole step lower which is the same as two half steps. So if you had a c double flat you would go down. The one half step. And the second half step.

Notice that with the double flat, you actually have two flat notes on the music instead of just the one "x" indicating a double sharp. Just like a double sharp, a double flat will always come right before the note that the double flat is to be applied to.