Agnes has been teaching since 1981, sharing expertise in piano and music theory, offering face-to-face and online lessons for individuals and groups of 2 - 4 students. She teaches piano pieces from the Baroque to the Contemporary music period of the modern day for both interest classes and exam syllabuses from Associated Board of the Royal Schools of Music (ABRSM) and Trinity College London Music (TCL). Agnes instructs students aged 5 or above, from beginners to advanced levels. 

Agnes is also a piano accompanist for instruments and vocal interest and exam classes. She accompanies ballet exams for Royal Academy of Dance (RAD). Moreover, she plays accompaniment for choirs. 

During her music career, Agnes has held public concerts and teacher-student concerts. 

Lessons can be instructed in English and Cantonese.