Yes! It is a lament or a dirge, and all punning aside, one of the most well known laments is in fact played on the bugle -- "Taps."

I've never heard "Threnody to the Victims of Hiroshima" though. I listened to the sample on Amazon.com -- it sounds like the soundtrack to Hitchcock's "Psycho." Is the whole piece like that? If so, wow. You could exorcize a house, a neighborhood even, with such music. It would certainly make for good Halloween music.