Grand Harmony Women's A Cappella Chorus - Imagine - Ken Seiling Museum by Grand Harmony Women's A Cappella Chorus published on 2023-03-13T19:57:17Z 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 'Imagine'