I honestly don't know, because I don't check, because I don't care. And where is "the place" that "the music" comes from? Is it the label that sets the origin of the music? Is it the nationality of the musicians? Is it the place the musicians live, although they're not from there?
An example is VNV Nation: First they originated in Wexford, Ireland. Then London, United Kingdom. Now they're in Hamburg, Germany. So what would you call that? Irish? British? German?
But if you really want some sort of absolut statement from me, I would go with the following hitlist (which can and does change depending on mood and time and a lot of other factors) with some names that might ring some bells...or not:
1. Germany (Unending list of great musicians, from Rammstein to Beethoven to Equilibrium to Blind Guardian to Hans Zimmer)
2. Sweden (Machinea Supremacy, In Flames, PAIN, Sabaton, Hammerfall, Steel Attack for the win! *and others*)
3. Finnland (Hard Rock Halleluja! Also: Children of Bodom, Nightwish, Apokalyptica, Amaranthe and lots of lots more)
3. Russia (Russian Federation that is for political correctness. Includes: Origa [for melancholy moments], Flesh Field [for dark-epic moments], t.A.T.u.[for the naughty moments])
5. Moldova ("So Lucky *brwerwrwwrw*" ['Zdob şi Zdub' for the ones that don't watch the ESC 2011])
6. UK ("On a cold winter morning, in the time before the light", Dragonforce that is. Also: Alestorm and others)
7. US (Of course, a huge amount of artists: From oldschool (Alice Cooper and Megadeath) to newschool (Devil Driver and Disturbed) and "what were they thinking?" (Powerglove and DVDA))