Music existed in ancient Greece in much the same way it exists today. They would have music during parties, while working, during religious events or special occasions... As the Greek author Aristides Quintilianus said in the third century, “There is certainly no action among men that is carried out without music.”
Having said that, music has changed significantly since Quintilianus wrote these words. But that’s what makes Conrad Steinmann’s album, Echo, so interesting. Yes, all of the works are played on recreations of ancient instruments, and some of the works are written by Steinmann himself but others are reconstructions of what the music from that time might have sounded like.