Beme

Heart of lion! sound the beme! Sound it into inner lands; […]

One of the long, curved horns was known as a beme and shows up as the instrument of choice blown by angels announcing the Biblical Day of Judgment.

And when the host on both parties saw that sword drawn, then they blew bemes, trumpets, and horns, and shouted grimly, and so both hosts dressed them together.

[…] be inserted directly into each other to make the long, straight beme or trompe.