nna Kwan Ton-an started learning the cello when she was ten at The Hong Kong Academy for Performing Arts, and has won scholarships including the Hong Kong Bank, Hong Kong Jockey Club Music and Dance Fund, Oberlin Conservatory of Music, Stanley Knight and Yale School of Music.

While studying for her Bachelor Degree at Oberlin Conservatory of Music, she worked with members of the Vermeer, Emerson and Colorado string quartets, furthering her studies at Yale University, where she was coached by Claude Frank, Peter Frankl and members of the Tokyo String Quartet.

As a soloist, Anna was invited by the LCSD “Young Soloist Series” to play a solo recital in 1999. She was also invited to perform as a representative of Wells Cathedral School, England while she was a student there to perform at the Governor’s House for Sir Chris Patten. She was principal cello of the Asian Youth Orchestra 1995 and a member of the Jeunesses Musicales World Youth Orchestra, orchestra in residence of the Verbier Music Festival, Switzerland in 1996 and 1997.

Anna joined the Hong Kong Philharmonic Orchestra in 2001. As the member of the Hong Kong String Quartet, she has given concerts in Beijing, Shanghai, Hong Kong and Macau, and is currently a member of the Anonymous Quartet.

關統安於十歲開始在香港演藝學院學習大提琴。多年來，關氏曾贏取多個獎學金，包括香港匯豐銀行、香港賽馬會音樂及舞蹈信託基金、歐柏林音樂學院、耶魯大學音樂學院和耶魯大學的Stanley Knight獎學金等。

在歐柏林音樂學院攻讀學士學位期間，關氏曾與來自Vermeer、Emerson和Colorado弦樂四重奏的成員合作。她及後前往耶魯大學繼續深造，接受Claude Frank教授、Peter Frankl和東京弦樂四重奏成員的指導。

作為獨奏家，關氏於1999年應康樂及文化事務署「青年獨奏家系列」邀請舉行獨奏音樂會。在英國韋爾斯座堂學校就讀期間，她還受邀以學校代表身份，於港督府為彭定康爵士演出。關氏於1995年擔任亞洲青年管弦樂團首席大提琴，並於1996年和1997年成為瑞士韋爾比耶音樂節常駐樂團 —— 世界青年管弦樂團的成員。

關氏於2001年加入香港管弦樂團。而作為香港弦樂四重奏的成員，她曾在北京、上海、香港和澳門舉辦音樂會。關氏現時為無名四重奏的成員。