sharp sign. flats look like little (b)s, like this, ♭, naturals look like a a rectangle with one line coming out of the top and one from the bottom, ♮, and ledger lines are a short line added for notes above or below the range of a staff. basically, lines where there is supposed to be a staff's line, but it's on the blank space on top or on the bottom, to show you there is supposed to be one there. (see picture attached)
two tied notes
Where is the image?
A. bass clef
D. treble clef
As per the image, it represents two kinds of clefs, the treble clef and the bass clef. Where the clef is the symbol which is used to represent the pitch of the musical note, a bass clef is a symbol that denotes the start of the second line of the musical note and the treble clef denotes the line above the musical note.
The treble is also known as the G clef whereas the the bass is known as the F clef.
According to the image given they represent what is called the Clefs. The image shows the treble clef and the bass cleft. And it exists the alto clef and the baritone clef. They are used to show or indicate the pitch of written notes. When they are on the stave, they serve to identify the name and the pitch of the notes.
B. Grand Staff
The Grand Staff is all the lines and spaces of notes from both Treble and Bass combined together. These images clearly show all of those notes.
D) Ledger Lines
The only information we know besides the whole notes are the fact they are on ledger lines. Not a fan of this question, personally.
I hope this helps!
-The Business Man
What is the image?