Hi Frankie! You have to actually tell us your question, this doesn't give us much information about what you need! and I also I believe this is under math, not history!
Means to dichange something .
<span>Middle ages or Renaissance Period
By French men of noble birth called troubadours and trouvères.The troubadours and trouvères were medieval musical composers. Their heritage is immense, existing today in a huge number generally medieval original copies that contain a great many ballads and several tunes to a great extent credited to singular troubadours and trouvères.</span>
