Kalutang Music from Gasan, Marinduque

Kalutang music from a xylohone, however a true kalutang sound emanates from wood. So what is Kalutang?
The Kalutang is a pair of wooden bars that create four basic notes when struck together. Each person carry a pair of softwood bars made from kawatingan trees. Each set ranges in length and width to create truly unique musical performances.

As far as I knew, this type of music is only known in Marinduque and originated in the town of Gasan. Kalutang playing is unique to Marinduque. Originally used as auditory signal by farmers, it later came to be associated with the Moriones in the town of Gasan according to Eli Obligacion, Marinduque's well-known blogger. In the 70's Tirso Serdena, a farmer, developed a series of kalutang pairs and used them together with other players to play popular folk melodies. It is now considered part of the town's - and Marinduque's - cultural treasures.