At Last Sung By Grand Harmony Women's A Cappella Chorus by Grand Harmony Women's A Cappella Chorus published on 2023-03-13T19:53:47Z Grand Harmony Women's A Cappella Chorus at the Ken Seiling Region of Waterloo Museum 'Giving Voice' Exhibition on February 25th, 2023. Grand Harmony Women's A Cappella Chorus singing 'At Last'