【初級樂理】acg - Minor Intervals
【初級樂理】acg - How to Build Major Scales
【樂理課堂】練耳：How to Find The Key of A Song - By Ear
【鋼琴課堂】入門：NthA - 3-4 Time verses 4-4 Time
【初級樂理】acg - Minor Scales 小調音階
How Music Works pt.4 - Bass
【初級樂理】acg - Major and Perfect Intervals
【初級樂理】acg - Ledger Lines Notes
【初級樂理】acg - How to Build Circle of Fifths
【初級樂理】acg - Farmer Fred and the Bass Clef
【初級樂理】acg - Gina and the Treble Clef
【初級樂理】acg - The Barnyard Friends and the Grand Staff
【爵士課堂】樂理：aca - Scales and Modes
【爵士課堂】樂理：aca - Modal Harmony
【爵士課堂】樂理：aca - Finding and Naming Scales in Music
【樂理課堂】ScL: Vertical Theory.5.2 - Minor Diatonic Triads
【樂理課堂】ScL: Vertical Theory.5.1 - Major Diatonic Triads
【樂理課堂】ScL: Vertical Theory.4 - Dominant 7th
【樂理課堂】ScL: Vertical Theory.4 - Dominant 7th