The official language of Malaysia is Malaysian. English remains a widely used second language, and there are also many other indigenous languages spoken.
Nowadays, everybody assumes, when they wake up in the morning, if they have a question, it will get answered. Because they have the internet. No matter what the question is, someone will answer their question.
Even if you're improvising, the fact that beforehand you know certain things will work helps you make those improvisations successful. It really helps to have a certain amount of knowledge about musical structure.