Emily Howard's distinctive music is notable for its granular use of instrumental colour, powerful world setting and inventive connections with mathematical shapes and processes.

Antisphere – the latest addition to Howard's ongoing series of orchestral geometries – was commissioned by the Barbican for Sir Simon Rattle and the London Symphony Orchestra, and opened the 2019-20 season. The 2019 premiere of a new setting of mathematician Ada Lovelace’s text But then, what are these numbers? also took place at the Barbican, as part of Ada Lovelace: Imagining the Analytical Engine, curated by Howard. The Anvil: An Elegy for Peterloo, for orchestra, chorus and soloists with a text by Michael Symmons Roberts, was performed at the Manchester International Festival the same year.

Howard's previous works include: the 2016 BBC Proms commission Torus; chamber operas To See The Invisible (2018), commissioned by Aldeburgh Festival; and Zátopek!, commissioned as part of New Music 20x12 for the 2012 London Cultural Olympiad.

Howard is the subject of NMC's composer portrait recording Magnetite, named after the 2007 work that was commissioned by the Royal Liverpool Philharmonic Orchestra to mark Liverpool's year as a European City of Culture. Howard is Director of PRiSM and Professor of Composition at the RNCM. She has received two British Composer Awards and recognition from the Paul Hamlyn Foundation. Her works are published by Edition Peters.