What is the origin of octavina instrument?

The octavina is a stringed musical instrument that originated in the Philippines, derived from the Spanish guitar family. It is a small, guitar-like instrument with a higher pitch and typically features six strings, tuned an octave higher than standard Guitars. The octavina is often used in traditional Filipino music and folk ensembles, reflecting the country's colonial history and cultural blending. Its design and sound make it distinct within the realm of string instruments in Southeast Asia.