In the example below, you can see the notes represented by each of the lines and spaces of a treble or G clef. Note that the bottom line corresponds to the note E, and the first space corresponds to the note F. In other words, the notes on the staff (line-space-line...) follow the natural order (C, D, E, F, G, A and B). Note that we can write below the lowest line and above the fifth or highest line:

Ledger Lines

We can use ledger lines to write notes higher than the G and lower than the D:

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