将自然大调的第VI级音降低半音，叫作（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31705' and id < 2537788 and id<>'2537788' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31705' and id > 2537788 and id<>'2537788' order by id asc limit 5