The main titles of "Battlestar Galactica" have been set to two distinct pieces of music. For the first season, a different cue was used in North America than for broadcasts taking place in other regions. The North American cue was a modification of the instrumental cue used for Zak Adama's funeral in "Act of Contrition", followed by a segment played on taiko drums that played over a montage of scenes from the upcoming episode. The "worldwide" cue followed the same structure, but with the funeral cue replaced by a vocal rendition of the Gayatri Mantra: