Antonio Vivaldi

Secondly, what does In Excelsis mean? Excelsis comes from Gloria in excelsis Deo, the first verse of an ancient Catholic hymn. It means Glory to God up above (literally, in the heights).

Also asked, what language is Gloria in Excelsis Deo?

Latin

Who wrote the Gloria?

Morrison said he wrote Gloria while he performed with the Monarchs in Germany in the summer of 1963, at just about the time he turned 18 years old.