What does Nehemiah 9:4 mean?

Some of the Levites—Jeshua, Bani, Kadmiel, Shebaniah, Bunni, Sherebiah, Bani, and Chenani—stood on the platform and called out loudly to the Lord their God. Nehemiah 9:4 - Modern Text Bible

(The Levite leaders led the people in prayer, raising their voices together to seek God's attention and mercy.)