Antonia Chandler began playing the horn at the age of 11 in her hometown of Seattle, Washington, USA, where she studied with Bob DeCou and Mike Hettwer. When she was 18 years old she moved to Ohio to study with Roland Pandolfi at the Oberlin Conservatory of Music, where she earned a Bachelor of Music degree with Kappa Lambda Honors. She then moved to Connecticut to study with Bill Purvis at the Yale School of Music, where she earned the degrees of Master of Music and Master of Musical Arts. During her studies, she performed with the New World Symphony, the New Haven Symphony, and the Princeton Symphony, as well as attended many summer music festivals including Music Academy of the West, Round Top Festival Institute, Atlantic Music Festival, and Lake George Music Festival.

After graduating from Yale, Antonia moved to London where was a horn fellow with the chamber orchestra Southbank Sinfonia, and for the 2021-2022 season she also performed with the City of Birmingham Symphony Orchestra as 2nd horn trialist.

An avid chamber musician, she has toured with the Frisson Ensemble, a nine-piece chamber ensemble based in New York City and performed as a soloist with the Silver Bay String Quartet (NY) and the Oberlin Sinfonietta. She also enjoys historical performance on baroque and classical horns and was recently the baroque horn soloist in a performance of Bach B Minor Mass with the Parliament Choir in London. She has performed in venues such as Carnegie Hall, Vienna Musikverein, the Philharmonie de Paris and the Palau de la Música Catalana in Barcelona.  

Antonia won the audition for low horn soloist in Orquestra Gulbenkian in September 2021, and moved to Lisbon later that year. She has been a permanent member of the orchestra since November 2022.