The word "Eucharist" comes from a Greek noun meaning thanksgiving. The word is found in 55 verses of the New Testament. Four of these verses (Matthew 26:27, Mark 14:23, Luke 22:19, and 1 Corinthians 11:24) recount that Jesus "gave thanks" before presenting to his followers the bread and the wine that he declared to be his body and his blood.
The Holy Eucharist is celebrated twice on Sunday. The 8 AM service is quiet and contemplative without music or singing. The 10 AM service is more lively, featuring our choir(s), organ music and hymns.
Episcopalians invite all baptized people to receive communion, not because we take the Eucharist lightly, but because we take our baptisms so seriously. Therefore, all baptized Christians may receive communion regardless of their denomination or age. (Young children may receive with their parent's consent.) Visitors who are not baptized Christians are welcome to come forward during the Communion to receive a blessing from the priest.
If you're not an Episcopalian and would like to learn more, the Episcopal Church has set up a handy resource on it's webiste so you'll know what to expect when you visit.