Volume 1
Line, staff, left hand, right hand, treble clef, bass clef, keyboard, key names, note study, positions of Gaon 'do'~si

Volume 2
'Pa', 'Sol', 'La', 'Si', 'Do' above, notes, Gaon 'Do' to 'Do' below, keyboard and key names, 'Do' above to 'Sol' above, eighth notes, drawing columns

Volume 3
Rests, vertical lines, measures, double vertical lines, final vertical lines, repeat marks, notes and rests, types of measures and vertical lines, slurs, ties, and major notations

Volume 4
Rhythm chart and rhythm reading of notes, rhythm chart and rhythm reading of rests, beats, 'do? si? la? sol', 16th notes and rests, dotted quarter notes and rests, dotted eighth notes and rests

Volume 5
Staccato, mezzo-staccato, staccatissimo, slur, tie, dot and dot

Volume 6
Studying the names of notes - additional lines, interval 1 (1st, 2nd, 3rd, 4th, 5th), interval 2 (6th, 7th, 8th), Korean note names, English and American note names, semitones and whole tones, change table, note names when # is attached, note names when ♭ is attached

Volume 7
Chords and triads, major triads-tonic chords, subdominant chords, dominant chords, time signatures, 3/8 beat, 6/8 beat 1, 6/8 beat 2, 9/8 beat, 8/12 beat, dynamics of beats, beat mixing, dynamics, dynamics signature

Volume 8
Dotted and dotted rests, grouping of eighth notes, double repeats, notation of mezzo-staccato, tenuto and accents, use of (fermata), function of whole rests, complete and uncompleted measures, types of accents, syncopation, crescendo, decrescendo, diminuendo