18th century music would often open with a strong fanfare of a few short notes, as there was no electricity during this period and therefore theater show lights could not be dimmed down to signal the beginning of a theatrical show. Wolfgang Amadeus Mozart particularly enjoyed using this technique as he felt it was a robust way to open his symphonies. During the 18th century, it was not uncommon for people to chat and drink during a performance, even moving between seats if they saw somebody they knew so that a conversation could be started