A sojourn in musical heaven with the London Haydn Quartet
Catherine Manson and James Boyd in action.What a night.I'm actually still in something of a daze after last weekend's appearance by the London Haydn Quartet at the Boston Early Music Festival. It was one of the most transporting concerts of the year, and in one fell swoop (or perhaps three, as the concert included not just Haydn but also Beethoven and Mozart) made a strong case for ranking this quart…