Question: How was the voice of the Welsh singer referenced in The King of Rock and Roll described?
Sentence (from "Faenol Festival"): The Faenol Festival (Welsh: Gŵyl y Faenol ) is a music festival organised by Welsh singer Bryn Terfel, originally held annually on the Faenol Estate (Welsh: "Y Faenol"), near Y Felinheli in Gwynedd, north Wales.
Relevant evidence: No