A trumpet-tuba duo: what an unusual idea! At the height of the pandemic, the brothers Thomas and Romain Leleu came up with the notion of creating a unique ensemble. While virtuosity (whose Latin origin in the word virtus, at once 'strength' and 'virtue', should never be forgotten) was a given for the two musicians, who play with an astonishing rapport, they are even more fascinated by the search for the appropriate sound world for the newly minted pieces they perform.