sentences:  Based in Paris they tour the world with varied programs from recitals to a larger group with singers.The ensemble takes its name from the manuscript now known as the "Concerts à Deux Violes Esgales du Sieur de Sainte Colombe" which bears the inscription "A 2 Violes Esgales", is the name given to a 17th-century manuscript of music for two bass viola da gambas by Monsieur de Sainte-Colombe found in Alfred Cortot's music library that was transferred to the Bibliothèque Nationale in the 1960s.The book contains music by Lully and 67 "".