Mike Smith <[log in to unmask]> wrote:
>Can anyone think of other similar comparable retunings during
>a movement in the Romantic (or Classical) chamber literature?
Apparently the term is scordatura. I don't know about chamber literature,
but in the symphonic literature there's Saint Saens' Danse Macabre which
requires the concertmaster to tune his E-string down a half-step so it
makes a dissonant tritone with the A-string, and I understand that
Mahler's 4th symphony also requires unusual tuning by the concertmaster
in the second movement.
Searching wikipedia will give you a larger list of examples.