An octave is the distance between a note and its next repeat higher or lower, after passing all the other letters in the musical alphabet. The following example is one octave of A, one octave of B, one octave of E and one octave of G.
Using a notebook or some paper, draw an example of an octave on the bass staff with the notes you learned in lessons 1 and 2 by drawing two whole notes an octave apart. Then do the same on a treble staff.
When the treble and bass staves are joined together, they form what is called a grand staff, or great staff. Piano and keyboard music is written on the grand staff. Both the bass and treble staff have a middle C, which are in fact the same note.
On any keyboard, the black keys always appear in groups of two or three. The C note is a white key. It is always on the left hand side of a group of two black keys. Find all the C notes on your keyboard.