Their music may not be so easy to find outside Nepal, though there are a couple of online sources. For those of you interested in sampling their sound, here's one track you can download from their latest release, which is already a couple of years old. The group is still active and will be playing a free concert next Saturday as part of the celebrations of the anniversary of the UN Declaration of Human Rights.
Kutumba is a folk instrumental ensemble, group of seven professionals from Kathmandu. Having come together for the preservation of their culture and art, Kutumba wishes to spread love and joy of Nepali folk music throughout the world. Self motivated and self driven, Kutumba is a group with their own unique sound and vision.The seven members have different roots and backgrounds in music. Kutumba is the harmony of traditional roots, culture and new sounds.
Kutumba official website.