PRESENTATION OUTLINE
Treble clef: a symbol located at the beginning of a staff to indicate the upper pitches. It's also called the "G Clef" because the symbol curves around the second line of the staff.
Bass clef: a symbol located at the beginning of a staff to indicate the lower pitches. It's also called the "F clef" because the symbol curved around the 4th like of the staff
Time signature
A symbol places at the left side of the staff to indicate the meter (number of beats per measure/which note gets the beat)