Many folksongs and ballads are built around a conversation between two or more characters, and the singing may be shared by different people, clearly differentiating the characters and bringing them and their story to life.
The Sillertides are Linn Phipps (of Stornoway, Scotland) and Doug Huggins (of Colorado Springs, Colorado), who offer live zoom shared-singing of these types of songs. These song partners, while 5,000 miles apart, interact in the song as if they were both in the same place. Their most recent video concert performance, at Spring Harmony, received “rave reviews.”
You may learn more about Sillertides and their music at their website, https://www.linnphippsfolk.co.uk .