The language which sounds a particular aggressive?
North Korean speaking sounds always aggressive. They are always angry. I wonder how ordinary people speak.
For me, German does not sound so aggressive. I watched TV show that a foreign woman showing her cook and explaining in her language. I didn't notice where she is from. She talked about cooking, smiling beautifully. She sounded intelligent too. Then the Japanese narrations told it was cooked in someone's house in Germany. She was a German. It didn't sound aggressive at all.
Another TV shows the beer festival in Munchi. People speaks happily,of course it's a party! How can I describe about the German team work? They really enjoy together, singing, drinking. It made me smile.
I can't understand any languages other than Japanese and English. so other languages are always music to me. When I talked with someone who is Muslim in English, he sounds like reading Quran. If Italian speaks English or Italian, it always sound like a opera.
So, personally, the language that sounds aggressive is only North Korean. Because they are truly angry and aggressive.
I watched this video a few years ago. Is this German song? The all audience suddenly sang it. Good team work!
https://www.youtube.com/watch?v=QUqhPoA5bIY&lc=UggAV8JEUJJon3gCoAEC