Hindu
Judaism
Gupta empire
They created a caste system to segregate the Indians from the Aryans. They brought nature gods, and they had sacred text called the Vedas. They also brought a new language which was Sanskirt.
Your question is too general to provide an exact answer. However in times past the language of religion was "Latin" and it is likely that if by "sacred music" you mean sung chants, then these would be in Latin.
Sanskrit was one of the very ancient languages and writing systems of India.
Sanskirt is a word.
It is the sacred book at the Sikh Religion.
The Quran, Muslims holy book, was revealed in Arabic by God to prophet Muhammad (PBUH).
Judaism is not a sacred text, it is a religion and that religion happens to have a sacred text. To learn more about Judaism's Sacred Text, read the Related Question.
Sanskrit itself a language.It was used in ancient India and Sri Lanka.Considered as a dead language.But it is been taught still.
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Sanskrit itself a language.It was used in ancient India and Sri Lanka.Considered as a dead language.But it is been taught still.