Signatures can be stated either for all instruments, for example by normalshapemediumseriesnormalshapemediumseries\generalsignaturenormalshapemediumseries{ -2} which sets two flats on each staff, or separately for each instrument. Thus, the normalshapemediumseriesnormalshapemediumseries\generalsignature can be partly overridden by normalshapemediumseriesnormalshapemediumseries\signiinormalshapemediumseries=1 which puts one sharp on the staffs of instrument number 2 (ii). Of course, the current signature may change at any time as well as the meters and clefs.