A flat (♭) lowers the pitch of a note by a semitone (half-step). A sharp (#) raises the pitch of a note by a semitone. Naturals cancel out sharps or flats that apply to notes and make them their usual pitch (♮).
what lowers a pitch of d
The symbol to lower a note a half step is called a flat.
Generally, the sharp and flat signs are known as accidentals. They alter the pitch of the note. As an example, D sharp is a half-step higher than D where D flat is a half step lower.
Just the opposite, actually. A sharp RAISES a note by one half-step.
It is a half step higher and a half step lower.
it makes the note a half step higher
No, it actually raises the tone by a half step. A flat lowers it.
a flat... It looks similar to a lower-case b except the bottom is somewhat pointed. Flats and sharps (#) are usually found in the key signature, but sometimes one is placed immediately before the note that is to be played a half step lower (flat) or higher (sharp).
A flat lowers the pitch by a half step.
A flat (♭) lowers the pitch of a note by a semitone (half-step). A sharp (#) raises the pitch of a note by a semitone. Naturals cancel out sharps or flats that apply to notes and make them their usual pitch (♮).
The range. Voices - especially relating to singers - are said to have a 'range' of notes. Different people have different ranges.
It lowers the tone by one half step.
In standard musical notation the sharp sign (#) denoted a note raised by a half step. There are also half sharps and 3/4-sharps for raising a note by 1/4 tone or 3/4 tone respectively.