I'd take the opposite direction from SRS and suggest a sans serif font. Like the decorations on Blackadder, serifs can sometimes disappear into a busy background like that. I understand why you want to make it stylish and attractive, and on a plain field the Blackadder might be fine. But if, as you say, the background is staying, then legibility would take priority. Something like Tahoma or even boring old Helvetica - not very exciting, but practical.

The notes themselves seem fine - chatty and informative enough for sleeve notes. I certainly can't help you with more information, but, if you don't mind, a few suggestions on style.

Himself: folk-style should be hyphenated.

Let Union Be:The construction of the first sentence might be better as: A song about enjoying company and drinking, as well as other events or A song about enjoying company, drinking and other events.

Shiver Me Timbers: If, as I suspect, you're referring to the group led by George Hinchcliffe, it's called the Ukulele Orchestra of Great Britain - no "National".

Open Space:I don't understand the sentence Well, take that staus quo. If you're referring to the rock group, it should be capitalised: Status Quo. If you're not referring to the rock group, then the meaning's not clear at all.

Shanty: I'd check the spelling of Sheffield Folk Choral. I suspect it should be Chorale, although groups have been known to spell their own names incorrectly before now!

Good luck with it.