People
The strangest in itself and the prettiest song sung by Harris that ever I heard: his Irish song.
— Samuel Pepys

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The song is praised as both strange and beautiful. Those descriptions sit together without cancelling each other out: its unusual character is part of what makes it memorable. The final phrase singles out Harris's Irish song as the particular performance being admired.
Context reviewed