Spelling / Grammar

Hey folks.

I am a guy from Denmark, who is about to launch a facebook site for my bookings with music. BUT i need help with theses sentence. Are they correct grammarwise? :

SWING BEATS DENMARK - is a crew of DJs supporting the genre of ELECTRO-SWING, by arranging parties, where the sounds and styles of the 1920s and 30s are turned on their head and smuggled into the 21st century.

We try to return to the roots of the New Orleans and Chicago jazz music, keeping the bass on the downbeat while chopping the Jazz samples to the upbeat, creating an energy that House Music, Electro and Swing have rarely reached! Electro Swing is the use of Jazz samples from a Jazz record (either classic or modern) plus modern beats.

It is truly an individual, and a group experience and that’s what we like about it. It helps people get together, have fun and forget their problems. There are no rules, just fun, excitement and the promise to dance ’till late…