Tui Hirv is an Estonian soprano living in Reykjavík, Iceland. She graduated from Estonian Academy of Music and Theatre with a BA degree in singing in 2007 and MA in musicology in 2009. Tui Hirv has been active both in the vivid choir music scene of Estonia and as a soloist of contemporary chamber music. In 2008–2009 she worked with the Estonian Philharmonic Chamber Choir. With conductor Tõnu Kaljuste they recorded an album with the music of Arvo Pärt for ECM New Series, Adam’s Lament, which includes a piece named L’Abbé Agathon, where Tui performs as a soloist, and received the Grammy Award in 2014 for best choral performance. Tui Hirv has also been singing with early music vocal group Vox Clamantis under the guidance of Jaan-Eik Tulve. Their recording of Liszt's Via Crucis for the French record company Mirare was awarded Diapason d'Or in 2013.  As a soloist, Tui Hirv has cooperated with various new music ensembles, premiering pieces and new arrangements by various Estonian composers. Over recent years Tui has had a fruitful cooperation with Icelandic composer Páll Ragnar Pálsson.