Anyone who's had the opportunity to fire a variety of different weapons in the same enclosed space may notice the very different sounds produced by different calibres, loads, barrel lengths and the dimensions of the enclosure.
From the sharp crack of the diminutive .22LR, through the deeper boom
of the .45ACP, up to the shattering crash of the .30-06*, each one has its own unique qualities.
To exploit this unconsidered avenue, BorgCo engineers have designed the Gun Organ. This consists of a large number of carefully selected firearms, with extended capacity magazines, mounted in a range of open-ended*** metal or wooden containers (to give different sound qualities), and equipped with fast-acting solenoids attached to the triggers.
The solenoids are controlled from an organ-like console; pressing a key causes the corresponding weapon to discharge one round.
It's ideal as an alternative percussion section for Tchaikovsky's 1812 symphony, or a number of other works.
It has the advantage that in an emergency it can function as a disturbingly effective short-range anti-aircraft weapon.
*Canny readers will have noted that all** these rounds can be used in a magazine-fed semi-automatic action.
** Even the .22 LR, which is rimfire.
*** Initial experiments with closed-ended tubes quickly demonstrated that they rapidly became open-ended tubes.