This 27 April sees the premiere of Variations in memoriam Gonzalo de Olavide, by David del Puerto, at the Auditorio Nacional de Madrid. This commissioned work will be performed by the Spanish National Orchestra (ONE), under the baton of  Pablo González. The concert also includes the debut of a work commissioned by the ONE from Gonzalo de Olavide, who died two years ago, and who was very close to David del Puerto, both as an artist and as a friend. These two transitional works of the 20th-21st centuries will be performed along with two other transitional works from the 18th-19th centuries, Mozart's Concerto No. 1 for Flute and Orchestra and Beethoven's Symphony No. 2 in D Major,Opus 36.