Hanne studied composition at the Royal Conservatory of Antwerp with Wim Henderickx and Luc Van Hove. Beside composition she also studied Bass Clarinet and Piano. In her second year she was a laureate, with her first orchestra work Mitä, in the Aquarius composition competition. Mitä was created by the Beethoven Academie conducted by Jan Caeyers. Hanne composed for different chamber ensembles such as I Solisti del Vento, Oxalys, Enigma, Quince Quartet, Logos, and the Philharmonic Youth Orchestra of Flanders.

Her music is played from Belgium over St Peterburgh, till Japan. Also the Flemish Radio Choir and Choir & Voice commissioned Hanne new pieces.

Phaedra published her first cd “hommage of Hanne Deneire” In Flanders' Fields, vol.63 in collaboration with Ensemble Hommages. In 2010 Hanne is “composer in residence” of HERMESensemble.

At the moment she is writing her first opera in collaboration with Dimitri Leue.

Hanne cherishes yet another passion as well : through art she has been trying to help gifted children belonging to deprived groups. In 2003 she earned an award by the Koning Boudewijn Foundation for her work with highly gifted children.

After a year of intense coursework in psychology at the University of Brussels (VUB) she started as a music therapist in 2006. At the Guildhall School of Drama and Music in London she specialised in composition and community art. Since 2007 Hanne has been teaching at the Royal Conservatory of Antwerp, while concurrently writing a doctorate in the Arts.