[3] In 2019, writers of The Guardian ranked her Duet for cello and orchestra (2015) the 19th greatest work of art music since 2000, with Kate Molleson writing, "Miller is a master of planting a seed and setting in motion an entrancing process, then following through with the most sumptuous conviction.
[6] Miller returned to academic research in 2014, as a PhD candidate at the University of Huddersfield, supervised by Dr Bryn Harrison and supported by the Jonathan Harvey Scholarship.
She has ongoing artistic relationships with the soprano Juliet Fraser[13] and the Canadian string quartet Quatour Bozzini, for whom she wrote the pieces About Bach (2015),[14] Leaving (2011), Warblework (2011) and Just So (2008/2018).
[2][18] Miller moved to London to take up the post of Associate Head of Composition (Undergraduate) at the Guildhall School of Music and Drama in September 2018.
[20][21] In May 2023, Miller's chamber work Perfect Offering featured as the title track of Explore Ensemble's album of the same name, released on Huddersfield Contemporary Records, which Ian Potter, writing in Tempo, described as 'A must-listen for a monumental snapshot of British new music of the past years'.