This is a weird phrasing.

The Bible isn't specifically what inspired all the beautiful music. The religion of Christianity and the many localized pre-Christian religions that became absorbed into Christianity and were an influence on the adoption of many Saints' Days and other religious festivals, including Christmas, inspired an immense body of beautiful music.

The same is true of other religious traditions. Both Islam and Judaism have beautiful music traditions, to name a couple of other major world religions, as do probably many or perhaps even most other religions.