Talmud (Rodkinson Edition) — Book 2…
“ But have we not learned that the cornet used on the New Year must be the "straight horn of a wild goat?" He (R. Levi) said as R. Jehudah of the following Boraitha: On New Year's Day they used to blow (a cornet) made of a straight ram's horn, and on the Jubilees one made of wild goat's horn. What is their point of variance? R. Jehudah holds that on New Year's the more bent in spirit a man is, and on the Day of Atonement the more upright he is (in his confessions) the better; but R. Levi holds the more upright a man is on New Year's Day and the more bowed in spirit on the Fast Days, the better. ”
