What is the hearing equivalent of behold?

According to the Oxford definition of behold it only applies to seeing and not to hearing.

be·hold /bəˈhōld/ verb archaic literary
verb: behold; 3rd person present: beholds; past tense: beheld; past participle: beheld; gerund or present participle: beholding
see or observe (a thing or person, especially a remarkable or impressive one). "behold your king!"
synonyms: see, observe, view, look at, watch, survey, witness, gaze at/upon, regard, contemplate, inspect, eye

What is the auditory version of behold?

Solution 1:

I'd go with hark.

verb (used without object) 1. to listen attentively; hearken.

Solution 2:

Shakespeare answers this.

Hark, hark! the lark at heaven's gate sings,
And Phoebus 'gins arise,

Cymbeline

A modern equivalent (similar to Look! for Behold!) would be Hear that!

Solution 3:

I'd suggest Oyez!

interjection 1. hear! attend! (a cry uttered usually twice by a court officer to command silence and attention, as before court is in session, and formerly by public criers).

or it's two-word equivalent, Hear ye! Behold is archaic as well, so I see no problem with recommending an auditory analogue that is archaic.

This still is used in courtrooms, and was widely used earlier for delivering spoken messages, generally official notices or even royal proclamations.

So "Oyez, oyez" at some point meant, "Be silent and pay attention, for I will read a proclamation from the King!" Or it could mean, "Be silent and pay attention, so that you don't get arrested for poaching salmon" But generally, you'd want to be silent and pay attention, because even if it was as trivial as an announcement of discounted sugar, you'd miss out if you didn't listen.

For a modern version, I'd recommend "Listen up!"