It is a instrument made from bamboo

There's many

Explanation:

There are many flutes specifically. The pan flute could work because I'm sure it's commonly made from bamboo, the rainstick could work too.

I'm only saying these two due to their popularity, it would be a long list to list every bamboo instrument.

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)