You can listen to the bhajan and learn how to sing it yourself. The words and their meaning are below along with the chords for harmonium accompaniment.
Bhajan # 129 in the Premananda Bhajans book
Swami Premananda is residing in our hearts. He is the Lord of light, omnipresent and above all time, He is wisdom, He is the Guru, He is Premananda. I bow down to Him, again and again. All honour to our true spiritual master, who is OM itself.