1994-1997: First recordings

In 1994, Pádraigín recorded her first full-length album with producer/musician Garry Ó Briain. A Stór is a Stóirín was released on the Gael Linn label and featured 36 songs for all ages.^[3] Britain's Channel 4 commissioned music videos of a number of songs on the album for a series Rí Rá. The videos later became regular features on TG4 between 1996 and 1998.

Pádraigín's composition Mullach a’ tSí was recorded by Steve Vai on his 2012 album The Story of Light.

In 1995, Ní Uallacháin recorded her second album An Dara Craiceann: Beneath the Surface. It featured unaccompanied sean-nós songs and traditional songs set to her new compositions, including a work by Irish poet Nuala Ní Dhomhnaill.^[4] Later that year, she composed new pieces for the soundtrack of S4C's 1995 film Branwen.

Pádraigín's third album, When I Was Young, an album for children, was a collaboration between her, Garry Ó Briain and traditional singer Len Graham, which was released on the Gael Linn label in 1999 and later on Shanachie Records in the United States.

1999-2010: Oriel, A Hidden Ulster and Áilleacht

From 1997 to 2012 Ní Uallacháin was a regular performer with the Danish composer/musician Palle Mikkelborg and harpist Helen Davies. She is the vocalist on Mikkleborg's soundtrack for the 1998 Goethe film Light, Darkness and Colors^[5] (1998) and on the title track of his album Song... Tread Lightly (2002). Her composition Don't give me the whole truth (Ná tar le hIomlán na Fírinne) is featured on Davies' 2002 album, Open The Door Softly.^[6]

Between 2003-2005, Ní Uallacháin began intensive research on songs from her native Oriel and recorded an album of restored Oriel songs, An Dealg Óir. Produced by Steve Cooney, it was released on Gael Linn in 2003 and features frequent collaborators Liam O'Flynn, Liam Ó Maonlaí Ódhrán Ó Casaide, Helen Davies, Máire Breatnach & Laoise Kelly. The song Éalaigh Liom (Elope with Me) was performed on BBC Two's Highland Sessions programme presented by Mary Ann Kennedy.

Her book, A Hidden Ulster: People, songs and traditions of Oriel was published 2004 by Four Courts Press, and later republished on Ceoltaí Oirialla.

A Hidden Ulster is a 540-page collection of rare songs, their histories, biographies of authors, collectors and scribes, and documentation of folk traditions in Oriel from the 17th century onwards.^[7] A radio series, Songs from A Hidden Ulster, was produced for RTÉ Radio 1, with further programmes around the book and its contents created for TG4, RTÉ1 and on BBC radio.^[8][9] A Hidden Ulster was met with critical acclaim and featured in the Times Literary Supplement as a Book of the Year 2004 and Irish Times Books of the Year 2004 list. After the book's publication in 2003, Pádraigín was awarded Gradam Shean-Nós Cois Life in 2003 for her contribution to the Irish song tradition, and became the first traditional artist to be awarded a Major Arts Award from the Arts Council of Northern Ireland.^[10]

In 2005, A Hidden Ulster was shortlisted for the 2005 Michaelis-Jena Ratcliff Prize in Folklore and Folklife.

Following the publication, her work continued as the first woman to record an album of new compositions in Irish with Áilleacht (Beauty). The album was produced by long-term collaborator Steve Cooney and released in 2005. Collaborators Palle Mikkelborg, Helen Davies and featured Ní Uallacháin's composition from the album, An Leannán (The Beloved) on Masters of the Irish Harp in 2011.

As traditional singer in residence at the Seamus Heaney Centre for Poetry at Queen's University Belfast, Pádraigín collaborated with Colmcille and ULTACH Trust in creating series of events based around the exhibition of An Leabhar Mór (The Great Book of Gaelic), which was being exhibited in the Ulster Museum between October and November 2005.^{[citation needed]}

Her work and life was the subject of the documentary, Spiorad Saor on RTÉ One in 2007, part of the Léargas series.^[11]

Ní Uallacháin received her doctorate from Ulster University in 2009.^[12]

2011–2020: Return to recording and Oriel Arts Project

In November 2011, Pádraigín released her first album on the Ceoltaí Éireann label, Songs of the Scribe with early Irish lyrics and translations set to her new compositions and accompanied by harpist Helen Davies. Ní Uallacháin collaborated with poets Ciaran Carson and Seamus Heaney by setting to music song-poems from ancient Irish manuscripts, written by Irish scribes and scribe-poets.^{[citation needed]} To record the album, Pádraigín travelled to St. Gallen, Switzerland to read the Irish manuscripts. Songs of the Scribe was recorded in Copenhagen and remained on the Celtic Note album charts for seven months between March and September 2012.^[13] In 2014, Ní Uallacháin performed songs for the On Home Ground Seamus Heaney festival in Magherafelt.^{[citation needed]}

Pádraigín's third children's album, Let the Fairies In, was released in September 2012 and was produced by Dónal O'Connor.^{[citation needed]}

In 2017, the Oriel Arts Project was launched. Funded by the Arts Council of Ireland, it is a digital reclamation and restoration of a song and music tradition which had almost died out in Oriel, and where most of the song lyrics had lost their respective musics. Ní Uallacháin was author, editor and director or the project, and researched, edited texts and re-coupled of lyrics and music as part of the project and recorded the songs. New drone footage of the region was taken by Feilimí O'Connor, and video performances of the songs recorded by local and national singers. Sylvia Crawford contributed to sections on the harp tradition, with Darren Mag Aoidh and Dónal O'Connor contributing to the fiddle collections.^[14] To coincide with the project's launch, Pádraigín released Ceoltaí Oirialla, a double album of Oriel songs. The recording is divided between acapella and accompanied songs.

Pádraigín's work was acknowledged at the national 2018 Gradam Ceoil TG4 awards at the Waterfront Hall in Belfast. She received the Outstanding Contribution to Traditional Music award and performed ‘Séamus Mac Murfaidh’ (with her local protégés, Blaithín Mhic Cana and Piaras Ó Lorcáin), and her own composition, ‘Gleann na nDeor’ (with The Voice Squad) at the ceremony.

Between 2015 and 2019, Ní Uallacháin was director of the annual Éigse Oirialla festival in Carlingford, County Louth. The programme consisted of concerts, lectures, readings and discussions on Oriel and the region's music.

In 2019 a second documentary on her work was broadcast on TG4, "Sé Mo Laoch"

2021–present: Seven Daughters of the Sea

In 2022, she contributed a keening song to the soundtrack of John Connors' film The Black Guelph, which details the generational abuse suffered by Irish travellers at the hands of the state and church.^[15]

In November 2023, Ní Uallacháin released of her tenth studio album. Seven Daughters of the Sea. Longstanding collaborators Dónal O'Connor and Steve Cooney returned respectively as producer and guitarist. The album also sees Ní Uallacháin collaborate again with guitarist Steve Vai on the title track, and with Indian classical flautist Rajat Prasanna. It also features Fin Moore on pipes and Macdara ó Graham on vocal drones and overtones.

Residencies

• 2005 – Traditional Singer in Residence, Seamus Heaney Centre for Poetry at Queens University Belfast (appointment)
• Dundalk Institute of Technology (directorship of Dr. Eilish Farrell)^[when?]
• The Glens Arts Centre, Manorhamilton, County Leitrim.^[when?]
• Fellowship, Royal Literary Fund based at St Mary's University College, Belfast and Queens University Belfast (first recipient of an Irish language fellowship)^[when?]