who composed the music for it?
Mark Isham
Once Upon a Time (TV series)
Mark Isham composed the series' theme and music. 
who plays cora in once upon a time Barbara Hershey what's her profession? Actress who were her parents? Arnold Nathan Herzstein -a horse-racing columnist and Melrose Herzstein where as she born? Hollywood in Los Angeles, California, United States what's her date of birth? February 5, 1948 was she married? No but she was in a domestic relationship with David Carradine did she have kids? Yes - a son named Tom is she still alive? Yes what else has she acted in? A Killing in a Small Town, The Last Temptation of Christ, The Portrait of a Lady has she won any awards? Yes - Emmy, Golden Globe did the original show that i mentioned earlier win any? It didn't win any award but however it was nominated for 2012 People's Choice Award, 2011 Satellite Awards etc who else acted in it? Jennifer Morrison, Lana Parrilla, Robert Carlyle, Ginnifer Goodwin,  Josh Dallas how many seasons did it have? 7
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Once Upon a Time (TV series) [SEP] Music
Mark Isham composed the series' theme and music. On February 15 2011 an extended play album featuring four cues from the score was released by ABC Studios. On May 1, 2012, a full-length 25-track official soundtrack album was released by Intrada Records to accompany season one. On August 13, 2013, another full-length 25-track official soundtrack album was released by Intrada to accompany season two. Since December 2015, Mark Isham had begun to release music that was previously not released from the third, fourth, and fifth seasons on his Soundcloud account.