I don't think they were, either. And, hello, yes, giant canon gaps! I know nothing prior to New Who (except by osmosis) and haven't yet watched Season 4.

savagestime's had the drums related to the Time War in her fic—a kind of Time Lord PTSD, which is also a neat idea. But, I thought, Lord, years and years in captivity, these fellows are so *busy,* what would it do to them? Drums, mayhap!

Now I have to learn how to write potentiallyviolentslightlyhuman!Doctor .-.