Buy every Meshuggah record. Meshuggah never wastes your time. Lots of bands waste your time with throw-together bullshit, but Meshuggah would never do that. Each song has rhythm you can feel, and you think you love it, but you realize it's smarter than you. So you want to listen again, and you do. Their music is a drug, truly, and you should own it all unless you're afraid of feeling stupid. But if you're afraid, then you're stupid anyway. Pussy.