here's my favorite arabic metal bands:
1-Gene (Syria) i don't even know what's their genre, it's jazz/ heavy metal rock/ progressive , over arabic lyrics (with one song about a taxi driver, yeah the lyrics makes me LMAO)
only one album so far
2-Nu.Clear.Dawn (Syria) heavy/progressive
3-Khalas (Palestine) it's mostly a cover band for some old arabic songs (very old songs) still very talented
orphan land are kinda cool but since i don't understand the lyrics it creeps me out LOL if you wanna label it it's either arabic metal, or Jewish metal (since they use Jewish scales sometimes
http://en.wikipedia.org/wiki/Phrygian_dominant_scale)
p.s: 1-arabic music includes (almost) all of the middle eastern music, so there is no Persian music (there are Persian scales though) only arabic music same goes for Turkish (again there are Turkish scales) and other middle eastern regions, why? well it's a long story check out Wikipedia's article on arabic music if you actually care heh
2-arabic scale is one or two of the ~42 arabic maqams because of even toning of the western instruments you can't get 1/4 note therefore you can't get other maqams, so only 10% of arabic music can be played with western toning system, unless you tried something new with your guitar

and that's what i'm trying to do for a quite long time
of course that doesn't apply to fretless bass /violin/vocal... because you can get a 1/4 note with those
sorry for my bad English
