a suono di

also figuratively idiomatic

（慣用的、比喩的）音を伴う

English Meaning

(idiomatic, also figurative) accompanied by the sound of

La manifestazione si concluse a suono di tamburi e cori, con la folla che si disperdeva lentamente.

デモは太鼓や掛け声の音を伴って終わり、群衆はゆっくりと解散した。

The demonstration ended accompanied by the sound of drums and chants, with the crowd dispersing slowly.