What's going on on Mt Ainslie?

It’s a bit late now, but I received this in an email yesterday:

Well folks, my hand has been forced by circumstances such as, but not limited to, urgency.

1) Probably a hip hop flavoured party atop mount ainslie tonight, the 9th
2) Next Loudisboring, Wednesday February 21
3) Other Rumours: Creme organisation on the 23rd, Dual plover showcase
march 9th, website launching MONDAY, I ALMOST PROMISE.

read on for nitty gritty.

—
details:

1) The reals reason I’m sending this email out now, with haste
indicated by the EVEN UGLIER FORMATTING than the last time is that the
is a mouldy, sweat soaked illegible scrawled leaflet in the pocket of
the shirt I wore to Diplo last week asserting that there is a hip hop
gig atop Mount Ainslie. The readible words are “gold coin” “d’opus”,
“9th” and “mount”… and I was given the flier by muse, so I guess
she’s in too…. CAN ANYONE FILL IN THE REST OF BLANKS FOR ME? Sorry
folks, I was tired. and arguably drunk that day. I’ll send out the
rest of the info if anything more concrete comes my way in the next
coupla hours.