Significance of Lycopolis
Lycopolis, as known by the Greeks, was an Egyptian town where the jackal was the sacred animal of Assiut. Uniquely, the inhabitants of Lycopolis, along with those of Busiris, abstained from using trumpets. This avoidance stemmed from the instrument's sound being reminiscent of an ass's bray, a sound they seemingly wished to disassociate from their community.
The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.
Classical concept of 'Lycopolis'
From: Egypt Through The Stereoscope
(1) The Greeks called the town of the jackal this name, which was the sacred animal of Assiut.[1]
From: Legends Of The Gods
(1) The inhabitants of this location, together with those of Busiris, avoid the use of trumpets because the sounds produced by these instruments are similar to the braying of an ass.[2]