Piano is read with two clefs one being the treble clef which mainly focuses on notes above middle C with a few exceptions, and the other being Bass clef which is your lower section of the piano and keyboard and focuses on the notes which are below middle C.
This is a general rule with a few exceptions. Sometimes music may cross the clef barrier and be written with notes still displayed in the Bass clef that are played of a higher section just slightly above middle C.
The Bass clef section of the piano is a really prominent and it is important to fully learn all the notes and where they are on musical score, as the Bass accompaniment really pads a song out and makes it sound complete when it’s being performed or played.
If you were just to play notes in the right hand it would sound a bit empty and it wouldn’t be able to be performed in this way.
The notes that sit on the lines in the Bass clef are G B D F A.
A simple rhyme to help you remember this is Great Big Dogs Frighten Auntie.
The notes that sit in-between the lines are A C E G. A simple rhyme to help you remember this is All Cows Eat Grass.
Like in the treble clef you will have additional notes in the Bass clef which are read outside the stave. The ones you will come across quite frequently are Middle C, B, F & E. Middle C is Two steps above A, which is the top line of the stave, B is one step above A which is on the top line of the stave. F and E are on the lower section of the stave. F is one step below G on the bottom line of the stave and E is two steps below G on the bottom line of the stave.
So always remember in the Bass Clef, A is the top line, and will be a higher sounding note, and G will be the bottom and first line moving up the stave and will be a lower sounding note.
When you look at how the notes are displayed in musical score you will see the similarity between the treble and both clefs. You will recognise that the notes sit on the same part of the stave, in-between and on the lines, but are read as different notes because they are in different clefs.