For interest, I answered on British Traditional Folksong in Mastermind in 1988, back in old Magnus Magnusson days. Don't recall all questions, tho do remember that answer to first was, in fact, Child; & to last was Gavin Greig. Didn't win tho — quite disgracefully confused Helston & Padstow! {But can't resist adding that did win round & got to semi-final a few years later in the Radio4 version, on Shakespeare's Comedies.}

~Michael~