I still think the old fashioned mechanical SD-10 air raid sirens that went off at noon every Saturday post WWII till about 1980 were the most reliable. (A steady siren meant: "alert" A rising and falling tone meant: "Sit down; face the nearest concrete wall; put head between legs - kiss ass goodbye!" as the saying went.
I can't prove it, but I think Billy Joel borrowed the rough concept of an air raid siren in his musical structure for his song "Leningrad". (And that's unbelieveable musicianship to make something like that into a listenable song!! )
And his musical structure rose and fell...
That quote above just made me go download it, and I'm going to do a couple of my little sets of modified versions in Audacity. I haven't done one of those in a while.
I think I got my "magic formula" - "Echo 4 4" aka Delay .04 seconds and decay factor 0.4, twice. It evokes for me those cut rate cheap PA speakers one of my schools used to use for stuff. Then a couple more variants for the set, depending on the mood I am in. (After the double echo.)
A. Tempo up 15%, to give it some urgency
B. Then some pitch down adjustments, because I often like bass pitched versions of stuff. My standards:
B3 37% (This one is tricky, it can sometimes be too much. It works best when the original starts with a high tenor or soprano.)
These kinds of homemade adjustments really open new avenues for me to explore a song with.