The term Ashkenazi also refers to the Nusach Ashkenaz, the liturgical tradition used by Ashkenazi Jews in their siddur (prayer book). A nusach is defined by a liturgical tradition's choice of prayers, the order of prayers, the text of prayers, and melodies used in the singing of prayers. [citation needed] More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.