choral, coral

Choral or choral describes music meant for a group of singers or choir--
Some of the classical composers wrote choral music.
The choir director spent the summer looking for new choral music.

Coral or coral ( rhymes with choral ) means the little creatures that live in the ocean, or the things made from their dried remains--
They passed a new law to protect the coral reef from pollution.
Coral sometimes washes up on the beach here.
She gave her sister coral earrings for a holiday present.
"Full fathom five thy father lies--Of his bones are coral made..."

Now that you know that, you can say--
"The composer's visit to a coral reef inspired him to write a piece of choral music in its honor."

Note--"chorale"  means a particular sort of choral music, or the group that sings it--
He wrote a chorale for a four part choir, inspired by a trip to Manhattan.
Not to be confused with "corral", meaning a pen or fenced enclosure for cattle, horses, or other livestock--
Let's drive the horses into the corral before dark.
"Corral" may also be a verb ( action word ), meaning to drive or move animals into a pen or enclosure--
When we're finished here, we'll corral the rest of the horses.