G 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.

The double-flat symbol (♭♭) is placed before a note like other accidentals. While single flats usually point to black piano keys, double-flats often point to piano naturals; an Ab is a black key, but Abb is the G natural key (see enharmonic notes).

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.

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 resultant pitch would sound the same as the pitch "A".

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.

The reason that we have double-flats is a bit more complicated, since there are no scales that require us to modify existing notes by lowering notes. But there are chords that require us to lower the 7th note by placing a flat in front. If that key's 7th note is already flat, then you'd need to use a double-flat.

In standard music notation the double-sharp symbol resembles a bold letter "x" but can also appear as ##. Chords are generally derived from every other note of a scale and some key signatures contain scales with double-sharps. For example, the key of G# contains these notes: G# A# B# C# D# E# F##.

Sometimes it becomes necessary to use double sharps or double flats in order to notate the music logically adhering to the scale the piece is based upon. (for more information on this subject watch our video on E sharps and C flats).

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.

It is said that everything was caused by a monk in the Middle Ages who wrote his music down in such a bad handwriting that many copiers interpreted the "b" as an "h". In the course of time, this spelling mistake was never noticed and established itself in some regions, and this is how the note name "h" came about.

We agree that G sharp and A flat have exactly the same pitch. If I play this in isolation with nothing around, they sound absolutely the same. The frequency of vibration is exactly the same.