Contemplating on God can be done in many ways.  Meditating quietly is the best in the list of practicing Meditation and Association with the wise.  Performing Japa or doing Pranayama come next.  Selfless Work too is hailed as being wonderful for making the mind pure and calm. But reading, listening to peaceful Music or watching Videos of a holy nature can also be very helpful when the mind has to be active and cannot be quiet.  Here is presented devotional music – Bhajans by Saints, Nirguni Bhajans  in Hindustani style and Krithis in Carnatic style.  You can Listen and Watch.