Simplify the following text for a Grade 6 native English-speaking person.
Original: While he was there his hosts played him a traditional Celtic folk tune called `` The Craigeelee '' , and Paterson decided that it would be a good piece to set lyrics to , producing them during the rest of his stay .
Simplified: While he was there the owners played him an old Celtic folk tune called `` The Craigeelee '' . Paterson decided that it would be a good tune to write words for and completed during his stay at the farm .