I'm not lighting a fuse with this, am I? O_O;

Anyway, Routine by Steven Wilson and Losing It by Rush are two big candidates. Remove all sharp objects from the immediate vicinity before you listen to them.

Actually, forget that. Songs about naval disasters (The Wreck of the Edmund Fitzgerald by Gordon Lightfoot, At the Harbor by Renaissance, The Wreck of the Hesperus by Procol Harum) are somber in tone but won't make you feel despondent afterward. They're like rye bread... a little rough and dark, but hearty and filling and ultimately cleansing in the end.