写封邀请函，李华的学校将举办音乐节，要求你邀请你的英国朋友Allen参加，内容包括

Dear Allen,

    How are you doing?I am writing to tell you a good news that our school will hold a music festival next Friday .It will begin at 6:00 p.m.
 

    This year the music festival will provide various activities where many students will put on some performances.On that day,some students will perform some “Red songs”to praise the great Communist Party of China and our happy life. Some will show the charm of the popular songs. And there may be some singing English songs. Knowing that you are a music lover,I think it would be a great idea if you could participate in it. You can sing or play a kind of musical instrument such as violin or piano. I am sure you will enjoy yourself in the activity.
 

I really hope that you can attend the music festival and please let me know your decision soon.                                                                                                                                                                                  Yours                                                                                                                                                                 Li Hua