Bismillah irrahman irrahim

Assalamu alaikum

I was wondering if any1 could tell me about the 7 different styles of recitation? I know if u listen to some one like Abdul basit abdul samad or Abdul Rehman as-sudais or Ahmed bin ali ajami or abu bakr shatri, they all sound different, but is that what its meant by different style? and where does the mujawwad, murattal, and qaloon comes in? and if some1 could kindly name reciter of each style please, jazakumAllah khair

wassalam