Key signature A minor as each accidental may be notated explicitly as required, or the piece may be modal or atonal. An example is Bartók's Piano Sonata, which has no fixed key and is highly chromatic. If not bound by common practice conventions, microtones can also be notated in a key signature; which microtonal symbols are used depends on the system. The common practice period conventions are so firmly established that some musical notation programs have been unable to show nonstandard key signatures until recently. The use of a one-flat signature developed in the Medieval period, but signatures with more than one
A-not-A question sentence pair with its Standard Chinese counterpart in (17). Note that such forms of AB-not-A in monosyllabic word is used by the old generation. When the predicate is a bi-syllabic word, then AB-not-A form is not attested as shown in (18.a), unlike it's Standard Chinese counterpart in (18.b). This form is attested in both Cantonese and its Standard Chinese counterpart as shown in the sentence pair in (18). This form is attested in both Cantonese and its Standard Chinese as shown in the sentence pair in (19). There are three salient morphological varieties of A-not-A question in Korean. And like