Kosovo - Serbs block roads in protest at a kosovo police action to control two disputed crossings

The video tutorial provides a brief introduction to singing, encouraging viewers to sing.

What is the main focus of the introduction in the video?

• Introducing the concept of singing

• Teaching vocal exercises

• Discussing famous singers

• Explaining the history of singing

What does the speaker request from the audience?

• To sing

• To listen quietly

• To dance

• To clap