In general, the loss of the stone-henge obelisks is, as you pointed out, inconsequential. It only really came up in a multiplayer game I played recently, where I had through sheer idiocy, lost my first 2 settlers to barbarians (I use protection now! though that self-same tribe destroyed half my military...). This slowed my expansion enough that I was just planting my final cities in my region when Calendar became available. No religion had spread to them, and they were there in order to secure resources in the frozen north. I was also a creative civ, and so I got a significant benefit from these free obelisks. I did in fact delay the acquisition of the Calendar so that I could milk more culture out of them. A particular city was surrounded by tundra and ice-hills, and it needed to expand another increment to nab me some marble. I generated my 30-turn stat (20 is more reasonable, sry) from this city, based on the fact that it could only reasonably generate 2-3 production, and a theater (which I still had yet to research for) would take about 17 or 25 turns to complete.
That is what I meant by "fringe city".
As for the awesome ♫ symbol, in most interperetations of ASCII code, typing "alt+14" will produce it. You have to use the num-pad, and it has to be "14", not "014", the latter will deliver an ancient formatting command.
These are alternate-characters 1-32 (#32 is a space):
☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼
I blew them up to forum-size 5, because smaller than that they get compressed.☺☻♥♦
♫ looks fine though in normal size, and is the only really useful one here.