The humming from the console was a pleasant background noise within the TARDIS, and the time rotor was gently moving up and down as the ship drifted through the vortex. Its pilot, owner, and sole occupant was, for once, taking a break from his usual hurrying about and mad adventures. He wasn't running down corridors, or delivering a chop of his hand to some creature's neck. Instead of that, the Doctor was lying back on a white deck chair inside the console room, reading through a fairly battered copy of The Once And Future King.
It had been that way for the last half an hour or so; not that long a break for the Doctor compared to the amount of time he spent saving worlds. But on a whim, he had decided to take a little downtime for himself. And why shouldn't he? The Brigadier didn't have any pressing issues that needed his immediate attention (though there would likely be several whenever he returned to UNIT). And Jo...well, Jo had gone now. Gone to get married with the Doctor's blessing. She was happy, and probably wouldn't be missing him all that much.
"Need some music," the Doctor muttered to himself, standing up off his chair and going over to the console. Some Beethoven was what he wanted right now. So he pressed a few buttons and flicked a lever. But the TARDIS' humming wasn't replaced by the sound of classical violins and other instruments. Instead it was the vworp vworp of the time machine's engines as it began to materialize somewhere. After a few groans, it landed with a thud.
Frowning to himself, the Doctor checked the console's instruments. He hadn't pressed a wrong button, had he? Of course he hadn't. So how had he landed somewhere? Suddenly he decided that he'd had a long enough break. Placing his bookmark, a Dodo feather, back in his book, he set it down on the console before flipping the switch to open the doors. He went down to them, taking his black cape off its stand and pulling it over his green jacket, before stepping outside.
Closing the doors of the blue police box behind him, the Time Lord looked around. His first thought of where he was was Earth. As for when, it looked somewhat more futuristic than 1973. Not the far-future though...perhaps it was later in the 20th century, or maybe even early 21st. Why had the TARDIS landed here? Continuing to look around, the Doctor started walking in what he thought was the best direction.