Mariella Cassar-Cordina is a Maltese composer of acoustic and electroacoustic music, and an educator. She holds a Bachelor Degree in Music Education and a Post Graduate Diploma in Administration and Management from the University of Malta. In 2005 she was awarded the M. Phil (Music) from the Mediterranean Institute at the University of Malta. Having been a regular student of Maltese composer Charles Camilleri, she decided to further her studies at Falmouth University incorporating Dartington College of Arts, UK, where she obtained a doctorate degree in music composition under the tutorship of Christopher Best, Trevor Wiggins and David Prior.

Her works vary from solo, chamber to full-orchestral works. She collaborates regularly with various Maltese and foreign musicians. Her interest in visual art has driven her to collaborate with a number of artists on various interdisciplinary projects, such as Daria's Vision, in collaboration with fine artist Ruth Bianco, and Ġgantija I and II with visual artist Victor Agius. All of these projects, supported by the Malta Arts Fund, were inspired by diverse sources such as echoes from Megalithic spaces, sounds from the Maltese landscape, and also from warped recordings.

Her works have been performed in Malta, UK, Italy, Austria and Czech Republic, one of her pieces being recorded live by Dunelm Records. Mariella Cassar-Cordina has been member of jury in a number of international singing festivals, including the Malta International Choir Festival in 2011. She is also the Education Officer for Music in Malta, lecturer at the School of Performing Arts and Faculty of Education at the University of Malta, the founder of the Malta Association of Music Educators (MAME) and co-founder of Ars Vitae Ensemble. She is currently living in New York, where, among the various artistic projects she is involved in, is working as a project coordinator of Orchestra of Our Time (US), under the directorship of Grammy Award composer and conductor Joel Thome.