After completing her composition Master’s degree in France Justina Repeckaite (b.1989) studied at the prestigious Cursus IRCAM in Paris. Her Cursus piece "Transduced" (2020) for percussion and live electronics was presented at the big hall of the Center Pompidou. In Paris she was an artist in residence at the Singer-Polignac Foundation, composer in residence with the ensemble Le Balcon conducted by Maxime Pascal and held a scholarship at the International Centre of Nadia and Lili Boulanger. Both her compositions "Chartres" (2012) for string orchestra and "Tapisserie" (2015) for chamber ensemble represented Lithuania in World Music Days and International Rostrum of Composers. Since 2015 she is a member of the Lithuanian Composers’ Union which awarded her the Debut of the Year prize. Her music is presented in Lithuanian Art Music showcase, by The Lithuanian Culture Institute.

In 2019 Justina Repeckaite’s music and interview were featured in Composer’s Portrait in Radio France show Création Mondiale for which she wrote a new composition "Encierro", performed by saxhorn quartet Opus 333. Her newest composition "Weaving" (2020) was broadcasted by ARTE television from the Grand Theatre of Provence. In 2021, together with 4 percussion players, Justina premiered her piece "Pulsating Skin" for 4 snare drums & electronics during Darmstadt Summer Course.

Justina’s music is performed by such ensembles as Intercontemporain, Court-Circuit, 2e2m, Spectra, Asko/Schönberg, OSSIA, Platypus, The Moscow Contemporary Music Ensemble, Ars ad hoc, Lithuanian Ensemble Network, Ithaca College Contemporary Music Ensemble, Ensemble for New Music Tallinn and recently by BBC Philharmonic orchestra. She is regularly commissioned by Gaida, the biggest contemporary music festival in Baltics, for which she wrote several orchestra pieces.

Justina Repeckaite's compositions were released in anthology albums like "Between Music and Ritual" (2020), "ZOOM in 12" (2018), "Anthology of Lithuanian Art Music in the 21st Century" (2017), "ZOOM in 10" (2014), "30 Druskomanija Moments" (2014) and "Contemporary Music Series: Lithuania" (2016) by Music Information Center. A portrait album will be released by Music Information Center next year.

In 2022 Repeckaite was an artist-in-residence at Villa Waldberta, Germany. She writes music for ensembles Collegium Novum Zürich (Electrocution festival, FR), der/gelbe/klang (Code Modern, DE) & Court-Circuit (French Ministry of Culture commission). IRCAM & The Centre of Baroque Music Versailles co-commissioned her to write a composition for choir & electronics to be performed in 2024 both at The Royal Chapel of the Palace of Versailles and during Manifeste festival, Paris.