The reasons for castration of mysterious Egyptian music are religious reasons, cultural reasons and political reasons.

1. For religious reasons, during the New Kingdom of Egypt, religion banned traditional Egyptian music in order to maintain the purity of its new religion.

2. For cultural reasons, with the decline of ancient Egyptian culture, traditional Egyptian music also disappeared.

3. For political reasons, Egypt was invaded and colonized, and the subsequent political influence also led to the castration of ancient Egyptian music.