Please have a blick on my invitation letter!

Hello,

I am Korean and I live now in Seoul. In recently, I write an English letter on behalf of my aquaintance who is musician and have a concert in his own house in Seoul. He has invited pretty many foreign performers to his house and had concerts since 2002.

On January next year a performer who lives in Germany will be coming to Seoul to have a concert. She wants to have a invitation letter for sponsorship in Germany. I have not written that kind of formal letter before. Please just a moment to have a blick on my writing. I think I have several mistakes of grammar and many things. I cannot figure it out by myself. Please help me~

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<The ( )th House Concert>

Date: the 1, on Janary 2007, at 20:00

Place: Seoul

Supervised by composer Mr. Park

Words for invitation

Mr. Park requests the pleasure of Ms. Lei as a performer to the ( )th House Concert in South Korea on 1, January 2007 at 20:00 in Seoul.

The House Concert is held twice a month since July, 2002. In the House Concert people have an opportunity to experience of hearing various genres, such as western classical, contemporary experimental music, Korean music, popular music, independent film and different kinds of performance.
The concert hall in which music is playing is a private house of Mr. Park. In such an intimate space performers and audience could be musicking close to each other, which is very uncommon way of having a concert in South Korea.

The concert on which Lei will be playing is a kind of special concert which takes place once or twice in a year.
On that concert many people would be able to take part in the concert free of charge and listen to contemporary music which is not heard easily in South Korea.

Park