【樂理課堂】mtg.1 - Key Signatures 1. The Basics，Stave
【樂理課堂】mtg.1 - Time Signatures 1. The Basics
【樂理課堂】mtg.1 - Understanding Intervals，Part 1
【樂理課堂】mtg.1 - Accidentals Semitones (Half-steps)
【樂理課堂】mtg.1 - Bass Clef (Understanding Notes)
【樂理課堂】mtg.1 - Treble Clef (Understanding Notes)
【樂理課堂】練耳：Learn to Play Songs by Ear
How Music Works pt.3 - Harmony
How Music Works pt.2 - Rhythm
How Music Works pt.1 - Melody
【鋼琴課堂】入門：NthA - Musical Rhythm 8th and 16th notes
【鋼琴課堂】入門：NthA - Rhythm Counting
【初級樂理】acg - Relative Minors on the Circle of Fifths
【初級樂理】acg - Augmented & Diminished Intervals
【初級樂理】acg - Circle of Fifths，Major Keys
【初級樂理】acg - Double Sharps Double Flats
【初級樂理】acg - Technical Degree Names
【初級樂理】acg - How to Build Triads
【初級樂理】acg - Sharps, Flats and Naturals
【初級樂理】acg - Sharps, Flats and Naturals