How did they used sahunay instrument of mindanao?

It seems you might be referring to the "Sa-un-ay" instrument from Mindanao. However, there's no instrument with that exact name in Filipino or Mindanaoan musical traditions. It's possible there's a misunderstanding or a misspelling.

Let's break down some possibilities to understand what you might be asking:

1. Possible Misspelling:

* "Sa-un-ay" might be a misspelling of a similar-sounding instrument. Some possibilities include:

* "Salungay" (also spelled "Salunggay" or "Salunggay"): This is a bamboo flute popular in the Philippines, often used in folk music and traditional ensembles.

* "Suling": This is another common type of bamboo flute in the Philippines.

2. Regional Variation:

* It's possible that "Sa-un-ay" is a specific name used in a particular region or community in Mindanao.

To help me clarify your question, please provide some additional information:

* What is the instrument specifically used for? (Playing music, rituals, etc.)

* Where in Mindanao did you hear about this instrument? (Specific tribe or region)

* Do you have any visual descriptions or images of the instrument?

With more details, I can try to identify the instrument you're asking about and explain its usage.