The musical traditions of Cape Breton, Nova Scotia are reflected in the playing of Jackie Dunn. Equally proficient on fiddle and piano, Dunn has worked with many of Nova Scotia's top traditional musicians. She has played piano on recordings by Brenda Stubbert, Glenn Graham, and Buddy MacMaster, while her fiddling was featured on the multi-artist compilations, Live at the Creamery and Cape Breton Fiddlers' Association 25th Anniversary. Appearing as a guest step-dancer on Wendy MacIsaac's 1998 album, That's What You Get, she played both piano and fiddle on MacIsaac's 2003 release, Timeline. An independently released solo album, Dunn to a "T", released in 1995, continued to spotlight her diverse talents.
Hailing from the northeast Nova Scotia seaside town of Antigonish, Dunn represents the meeting of two musical families. On her mother's side, she's descended from the MacEachern family, a clan which includes such musicians as Dan Hughie MacEachern, Howie MacDonald, and Theresa and Donald MacLellan, on her mother's side, while, her father's family, the Dunn family has produced such musicians as Dave MacIsaac, Archie Neil and Angus, Cameron and Maybelle Chisholm.
Dunn received a Bachelors degree in music from St. Francis Xavier University, in 1991, after completing her underground thesis, The Blasna Gaidh Lig Air A H-uile Fidhleir/The Sound Of Gaelic Is In The Fiddler's Music.