John Hayward-Warburton wrote:

>...and between two of the tracks of the 'Enigma' you'll clearly hear
>Menuhin whispering "one...two..." to the orchestra as he raises his arms.
>Mind your ears (and loudspeakers) though.
>
>Nearly as good as the telephone ringing in the Du Pre/EMI Elgar Cello
>Concerto.

Or the London underground trains on many Kingsway Hall recordings, or
the prop driven aircraft in the Furtwangler Bruckner 8th.  This month the
BBC are releasing a CD of Mahler's Fourth Symphony conducted by Benjamin
Britten where I believe (I am now awaiting my copy with bated breath) the
sound of a bird twittering outside the church where the performance was
taped can clearly be heard in the slow movement.

Tony Duggan
Staffordshire,
United Kingdom.