In printed piano music, the treble and bass clefs help identifying the music notes. their pupose is help piano players to know what key to play and how long to play that key.

Treble Clef

Bass Clef

Quick memorize basic notes in each clef:

just remeber as (Every Good Boy Did Fine)

simpler with (FACE)

just remeber as (Good Boy DO Fine Always)

just remeber as (All Cow Eat Grass)