This Level 1 Edition covers:

The Staff, Lines, Spaces, Double Bar, Bass Staff, Grand Staff, Leger Lines, Note Spelling, Note Values, Rest Values, Dotted Notes, The Measure, Time Signatures, 4/4 Time, 3/4 Time, 2/4 Time, Note Stems, Sharps, Flats, Half Steps, Whole Steps, Major Scales, The Natural Sign, and Accidentals.