Ethnic and cultural notes:
Malagasy music has developed from an isolated island but also as been influenced by Africa, Asia, and Europe creating a unique sound.

Music characteristics:
Malagasy music is not just one specific genre often has very strong percussion and often but not always has multiple singers.

Valiha: a bamboo harp, national instrument of Madagascar
Lokanga: a fiddle from southern Madagascar
Amponga: a basic two headed drum from Madagascar
more instruments

Videos and sound clips:
Some Malagasy Music samples from Calabash;

Extra links:
Glossary of Malagasy instruments