The prize-winning Donegal singer, Doimnic Mac Giolla Bhríde, and Ireland’s foremost scholar-performer of historical Irish music, Siobhán Armstrong, recently began a collaboration to explore the vocal music of the old Irish harpers. In this Discovery Day concert they will perform treasures they have reconstructed from manuscript sources of the 1700s, including neglected versions of well-known 18th-century compositions by Turlough Carolan, with Siobhán accompanying Doimnic’s raw and powerful singing on a beautiful copy of an early 18th-century Irish harp.