Like my high school trombone, black holes are in B Flat (at least, this one is). The difference being a few octaves (57). So what does Bb(-54) sound like? Well, it's something like 1.61733044 × 10^-15 hertz (don't have a slider for it on my system EQ), so I'd experience that note as the air pressure around me getting gradually higher and higher, peaking, then dropping off, followed by the air getting thinner and thinner until it reached the bottom of the wave. That, once every 19 million years.

From this we can induce that advances in life-prolonging technologies will be primarily driven by the Miami Bass Wars community, as they strive to extend their existence so that they can hear ever lower notes (and tune their cars/spaceships to produce them louder). Heck, with our current life expectancy, we can just barely hold on through one cycle of Bb(-36).

(friends in Europe:I meant H Flat)