Answer:
Love
Explanation:
Given that, the concept of a song is what the song is all about. That is, the main objective of a song.
Hence, Sarung Banggi which was originally composed and written in Bikcolano language by Potenciano V. Gregorio. The title in English is considered to have meaning "One Evening."
The song actually told a little story of a person (the composer) who heard the sad song of a bird while laying in bed during one evening. He eventually woke up to see the beautiful face of that bird.
Therefore, the concept of sarung banggi is LOVE
