A little while ago during a Gayatri Yagna that was performed in Springen, Swami Vishwananda recorded a new CD. On this CD he sings the Gayatri Mantra very sweetly and softly. (Gayatri Mantra audio sample: click here )
OM bhuur bhuwa swaha
tat sawituur wareenjam
bhargoo dewassja dhiimahii
dhioo jonaa pratschoodajaat
(May we meditate on the effulgent Light of the Worshipful One Who Has given birth to all worlds.May this One direct our Mind-rays towards the path of Good.)
This mantra is named also "The mother of the Vedas". Swami Vishwananda explained that inside this mantra there are many thousands of mantras and it is one of the most ancient sacred mantras. It is good to do it 3x at sunrise, 3x at noon and 3x at sunset. It brings great benefits , a lot of healing and helps to increase our spiritual growing.
(You can order the CD : http://www.bhaktishop.de/ )