Changing Scordatura During Performance
It is possible to alter the pitch of strings during performance.
Unless a tuning section is to be employed, the change of pitch should always be considered as appoximate and never exceed the suggested upward limits. The are examples that feature and extremely detuned fourth (or fifth string) and in Fernando Grillo's example from Fluvine, a extremely de-tuned string whose pitch is modified throughout.
Dynamic Range: pp-ff
Special Notes: See suggested limits .
Vinko Globokar Dialog Uber Feuer
Fernando Grillo Fluvine Tre
Barry Guy Statements II
Rebecca Saunders Chroma (5 - for two double basses)