Final answer:
The sound that will be heard when the dead are raised incorruptible and the living are changed is a trumpet, in accordance with Christian eschatological beliefs.
Step-by-step explanation:
The question refers to a biblical event concerning the End Times, specifically the resurrection of the dead and the transformation of the living as depicted in Christian eschatology. The sound that is described to be heard when the dead shall be raised incorruptible and the living shall be changed is a Trumpet. This imagery is familiar within religious texts and often symbolizes a significant divine intervention or event.
As for the reference provided, it speaks metaphorically of the power of sound to awaken even the dead. The mention of the drums and bugles resonating so strongly implies the significant and impactful nature of such sounds. However, in the specific context of the question, which seeks an answer from a biblical standpoint, the correct answer is a trumpet blast, which is synonymous with the sound signaling transformation according to certain interpretations.