* A hymn of joy following the Gradual in the Mass of certain joyous feasts, to denote in a special way the joyous character of the Mass, e.g., Lauda Sion Salvatorem, from the Mass of Corpus Christi.
* The hymn Dies irae, dies illa in Requiem Masses is not a sequence properly so-called.
- “sequence”. . Saints.SQPN.com. 22 December 2010. Web. 20 May 2013. <http://saints.sqpn.com/sequence/>