An Ave Maria in a church, a cheeky song at the foot of the vines, an aria by Puccini at the foot of the Sacré-Cœur. For ten years now, a Franco-Italian singer has been singing a cappella to accompany her tours of the famous Montmartre district in Paris. "I make the monuments and sites come alive and feel human," explains Veronica Antonelli. IMAGES AND SOUNDBITES