Scottish music doesn't get much better treatment on The Session than English. (For some aspects of Scottish music, Footstompin is the place to go, but it's not much like Mudcat).

That article had some mistakes about rhythm. Reels are duple time (2/4 or 2/2), strathspeys are 4/4. For strathspeys that matters - they're actually going twice as fast as they sound, and if you never accent anything but beats 1 and 3 your accompaniment will sound draggy.