写信:Write a letter of invitation in 150-200 words according to the following situation.
You are a volunteer. Your university is holding a Music Festival during the May Holiday. There will be a music concert played by the school orchestra and Chinese traditional music performance with traditional instruments such as the pipa and the erhu. Write a letter to invite your foreign teacher John Smith to the music festival, where he can experience music as well as Chinese culture. You also need to tell him what to expect, when and where to meet. Sign your name as Li Fei.