Sri PeriAzhwar’s thirunakshatram is Swathi in the Tamil month of Aani. Follow the links for the audio of some of his pasurams from his prabhandham (PeriAzhwar Thirumozhi).
http://azhwar.org/music/Sri_Periyazhwarmp3/030_Ennaathan_Daevikku-Periaazhwar_Thirumozhi-3-9.MP3