I don't know too many "math-rock" bands, most of them are just too much for me. However, my brother got me into Breadwinner many years ago and their magic has yet to wear me down to a bore. Great hooks, great time changes, great riffs, great bass playing, and phenomenal drive. They do an amazing job of keeping your attention while keeping it complex and interesting. Hands down, a band I wish had more of a catalog. I just came across some live recordings also if anyone is interested in those. Where are they now?
02. Kisses On The Mouth On The Mountain
03. Mac's Oranges