For a whole day, B'Rock and musician-friends focus on Johann Sebastian Bach. This time you won't hear passions, cantatas or motets, but only instrumental masterpieces.

Swinging from madly exuberant to sensitive and restrained, one could hardly imagine a finer ode to the baroque orchestra as the height of unity in diversity.

In his orchestral suite Les Elemens, the French composer Jean-Fery Rebel illustrates how earth, water, fire and air emerge from the chaos of the universe to form a new and harmonious order.

A macabre visit to the house of the devil resonates with the dark Sturm und Drang of Haydn's Symphony No. 49 ('La Passione'), while the string quartet ...miserere... by Louis Andriessen conjures up the restrained ambiance of the Purgatorio.