Here is a Karmasthana chanting by Ven. Hadapangoda Niwanthapa Thero (head monk of the Jethavanarama Buddhist monastery, Sri Lanka) :
Reflect on the meaning while listening to this Karmasthana (those who don’t know the meaning, can just listen to it with a calm mind, it is enough to get to samadhi and to experience Niramisa Sukha!)