This is a staff.

• 
• 
• 

This is a bar line.

• 
• 
• 

This is a measure.

• 
• 
• 

This is a repeat sign.

• 
• 
• 

This is a double bar.

• 
• 
• 

This is a flat.

• 
• 
• 

This is a Natural.

• 
• 
• 

This is a sharp.

• 
• 
• 

This is a breath mark.

• 
• 
• 

These are ledger lines.

• 
• 
•