What occasion did we used the butting instrument?

The butting instrument was a traditional instrument used by some of the native tribes of the Philippines during its time as part of the Spanish empire, with its use dying out in subsequent years.

Of a very basic construction, the butting was a single string of hemp stretched taut across a wooden bow, and played with a wooden stick.

As such it belongs in the chordophone family of instruments, along with other native instruments like the kudyapi, the kudlung and the gurimbao, and Western instruments like the guitar, lute and zither, which have their own ethnic variants in the Philippines.

Being a simple instrument, its use does not seem to have been restricted to one particular tribe. As for which occasions it was used, the butting is not mentioned in the Filipino Martial Arts Digest's thorough 2007 examination of native musical instruments, so it looks the Butting did not play a part in martial arts ceremonies. 

My guess is that the Butting would not have been used to welcome important guests, nor to welcome back pilgrims from a holy journey, but just as part of a band for the tribe's own entertainment, dances, or as music to listen to while working.

The traditional music of the Philippines is being kept alive by bands like Kadangyan, here seen performing on YouTube: