郭嘉特為香港演藝學院教授，於一九八九至二零二五年為鍵盤樂系主任。郭氏畢業於英國倫敦皇家音樂學院，二零零三年被推選為英國皇家音樂學院院士。郭教授現為深圳藝術學校特聘鋼琴專家學者，西安音樂學院特聘教授，星海音樂學院、武漢音樂學院及中國音樂學院客席教授。

郭教授多次在世界各地著名音樂學府主持大師班，其中包括英國倫敦皇家音樂學院、倫敦喬凱音樂及戲劇學院、英國皇家北方音樂學院、蘇格蘭皇家音樂學院、德國漢諾威音樂學院、漢堡音樂學院、奧地利格拉茨大學、荷蘭鹿特丹音樂學院、丹麥奧胡斯音樂學院、澳洲悉尼音樂學院、昆士蘭音樂學院、新西蘭烏克蘭大學、加拿大英屬哥倫比亞大學、美國卡內基美隆大學、辛辛那提音樂學院、伊士曼音樂學院、愛荷華大學、堪薩斯大學、北德州大學、西北大學、歐博林音樂學院、皮伯蒂音樂學院、羅斯福大學、三藩市音樂學院、天普大學、德州基督大學、華盛頓大學及耶魯大學。又曾任教於美國克萊邦/德克薩斯州鋼琴夏季音樂營、美國洛杉磯高賓學院音樂節、美國辛辛那提鋼琴藝術音樂節、英國曼徹斯特切塔姆國際鋼琴夏令營、義大利佩鲁贾音樂節、葡萄牙科英布拉音樂節、北京國際音樂大師班夏令營、天津茱莉亜鋼琴音樂節、台灣國際大師鋼琴藝術節、韓國慶星國際鋼琴夏令營、以色列特拉海國際鋼琴大師班及阿根庭布宜諾斯艾利斯國際鋼琴大師班。

郭教授又曾在多項比賽中擔任評委，其中包括意大利羅馬、葡萄牙維納莫特、美國真娜巴侯雅、香港、中國、美國希爾頓島、美國明尼蘇達鋼琴e、德國達姆施塔特蕭邦、巴西BNDES、英國詹姆斯莫特拉姆、中國深圳協奏曲、瑞士日內瓦、德國拜羅伊特-威瑪李斯特、德國舒伯特及丹麥奧胡斯國際鋼琴比賽。

郭氏是施坦威藝術家及施坦威榮譽教授。他是香港演藝學院及香港電台項目《貝多芬鋼琴奏鳴曲全集》的音樂總監。2014年他獲香港特別行政區政府頒授榮譽勳章，表揚他對鋼琴教育的貢獻。

Gabriel Kwok is Professor at The Hong Kong Academy for Performing Arts where he was Head of Keyboard Studies from 1989 to 2025. A Fellow of the Royal Academy of Music in London, he is Visiting Professor at Xinghai Conservatory of Music, Wuhan Conservatory of Music and China Conservatory of Music and at present Distinguished Expert Scholar at Shenzhen Arts School and Distinguished Professor at Xi’an Conservatory of Music.

Gabriel Kwok has given many masterclasses internationally including at the Royal Academy of Music, Royal College of Music, Guildhall School of Music, Royal Northern College of Music, Royal Conservatoire of Scotland, Hannover Hochschule für Musik und Theater, Hamburg Hochschule für Musik und Theater, Graz University of Music and Performing Arts, Rotterdam Conservatorium, Aarhus Det Jyske Musikkonservatorium, Sydney Conservatorium of Music, Queensland Conservatorium of Music, University of Auckland, University of British Columbia, Carnegie Mellon University, Cincinnati College Conservatory of Music, Eastman School of Music, University of Iowa, University of Kansas, University of North Texas, Northwestern University, Oberlin Conservatory of Music, Peabody Institute, Roosevelt University, San Franciso Conservatory of Music, Temple University, Texas Christian University, University of Washington and Yale School of Music. He has served on the faculty of the Cliburn Piano Institute/Piano Texas (USA), Colburn Academy Festival (USA), Art of the Piano (USA), Chetham’s International Piano Summer School (UK), Music Fest Perugia (Italy), Coimbra World Piano Meeting (Portugal), Beijing International Music Festival and Academy (China), Tianjin Juilliard Piano Festival (China), International Maestro Piano Festival (Taiwan), Kyungsung International Piano Academy (Korea), Tel-Hai International Piano Master Classes (Israel) and PianoSolo – Internacional Masterclass (Argentina). 

Gabriel Kwok has been a jury member of many international competitions including the Rome, Vianna da Motta, Gina Bachauer, Hong Kong, China, Hilton Head, Minnesota Piano-e, Darmstadt Chopin, Rio de Janerio BNDES, James Mottram, China Shenzhen Piano Concerto, Geneva, Bayreuth-Weimar Liszt, Schubert and Aarhus International Piano Competitions.

Gabriel Kwok is a Steinway Artist and Steinway Honorary Professor. He was the Music Director of The Hong Kong Academy for Performing Arts / Radio Television Hong Kong ‘Beethoven 32 Piano Sonatas’ project. In 2014, he was awarded Medal of Honour from the Hong Kong Government for his contribution to piano education in Hong Kong.