The origin of the term: "baroque" comes from the Portuguese and refers to an "irregular shaped pearl". The Baroque Era stretched from 1600 until the death of Bach in 1750. The music in the Baroque Era got abroad in Europe between the 17th and mid-18th centuries. Italy was at the center of the movement, and Italian composers exercised a wide influence on his contemporaries. The representative works are as follows: "Concerto Grosso In G Minor, Op. 6 No. 8", "La Folia" by Arcangelo Corelli, "Adagio" by Tomaso Giovanni Albinoni, "Il Cimento dell' Armonia e dell' Inventione" by Antonio Vivaldi, "L' Orfeo" by Claudio Monteverdi, and "Canon In D" by Johann Pachelbel. "La Folia" is one of the several dances and dance songs of popular origin which developed in the Iberian Peninsula in late Middle Age. A number of "La Folia" variations were developed, and Corelli's variation is the most famous among them.