What is the gap between notes?
The space, musically, between any two notes that are the smallest step we use usually in music, is called a semitone. So, on a piano, play any note, then the next to it, as close as possible.
What is the order of space notes?
The letters assigned to the lines and spaces of the staff go in order from low pitch to high starting on the bottom of the staff moving up. The letters of the lines and spaces cycle through the natural notes of the musical alphabet — A, B, C, D, E, F, G, A, B, C, D, E, F, G, A, … and so on.
What are the notes in space notes?
In the treble clef, the names of the four spaces, bottom to top, are F, A, C, and E. If the space below the bottom line, D, is added, then the acronym Dog FACE can be used to learn the treble clef note names.