a.tid describes those prepared to act when the specified signal is heard.

The attested use describes people being prepared for the required response when the musical signal is heard in Daniel 3:15.

1. Prepared for the required response · dominant

   In Daniel 3:15, the masculine plural absolute form occurs in the condition preceding the hearing of instruments and the commanded falling down before the image. The APB renders the clause, “if you are ready,” before describing that response.

   Daniel 3:15

In the Anselm Project Bible: In Daniel 3:15, the APB presents the clause as “if you are ready.” This wording confirms the clause's overall presentation rather than isolating every contribution of the form.