Doctor Who: More on Planet of the Ood (music-related)
So, the Doctor's song may be ending soon. What's that about? I've got no notion. Isn't that fun?
The bit of the Doctor's theme that plays at the end of PotO goes sliding down fast, much faster than it plays in the straight-up 'Doctor's Theme'. It is, in fact, exactly the version of the song that appears over the driving beat of 'Doomsday' (all of the 'Doctor's Theme' is much... dreamier than the more intent version that is sung during 'Doomsday').
Note: Ah-ha. A mystery is solved. Though the melody from DD is not the same as "The Doctor's Theme", it is still the same as the music that happens when Rose enters the TARDIS (as pointed out by cookie2697), which is not "the Doctor's Theme" and does not appear to be on the soundtrack of first series (unless someone else finds it there!).
And here's the imeem link if the embed doesn't work.
They're the two halves of a whole -- she's the driving, burning determination and he's the lone, calling voice. Each reaching out. Each still lost.
And that is all the meta that I have for right now.