<P> A shofar (pron . / ʃoʊˈfɑːr /, from Hebrew: שׁוֹפָר ‎ (help info), pronounced (ʃoˈfaʁ)) is an ancient musical horn made of ram's horn, used for Jewish religious purposes . Like the modern bugle, the shofar lacks pitch - altering devices . All pitch control is done by varying the player's embouchure . The shofar is blown in synagogue services on Rosh Hashanah and at the very end of Yom Kippur, and is also blown every weekday morning in the month of Elul running up to Rosh Hashanah . Shofars come in a variety of sizes and shapes, depending on the choice of animal and level of finish . </P> <Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2012) (Learn how and when to remove this template message) </Td> </Tr> </Table>

When is the shofar sounded on yom kippur
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