Liya Petrova and Jean-Jacques Kantorow invite us to enter through the main porch of the cathedral Beethoven erected for the violin, leading into his single, radiant Concerto premiered in 1806. They then guide us towards a more secluded chapel, yet also bathed in bright light. Mozart’s Violin Concerto ‘no.7’ dated 1777, whose authenticity is still debated b musicologists, throbs with a playful operatic energy that suddenly shades into delicate melancholy.