What is the proper noun for each common of singe?

It seems you're asking for the proper nouns that relate to the common noun "sing". This is a bit tricky as "sing" doesn't directly translate to a specific proper noun. However, we can explore some possibilities:

* Specific songs: If you're looking for the proper noun of a specific song, you'd need to know the title of that song. For example, "Hallelujah" is a proper noun for the song written by Leonard Cohen.

* Specific singers: If you're looking for the proper noun of a specific singer, you'd need to know their name. For example, "Elvis Presley" is a proper noun for the singer.

* Specific singing groups: If you're looking for the proper noun of a specific singing group, you'd need to know the group's name. For example, "The Beatles" is a proper noun for the band.

Can you provide more context about what you're looking for?

For example, are you asking about:

* A specific song someone is singing?

* The name of a singer?

* A group of singers?

Knowing more details will help me give you a more accurate answer.