Wolfgang Amadeus Mozart:  Vorrei spiegarvi, oh Dio!, KV.418

KV 418 is a concert aria for soprano and orchestra, which Wolfgang Amadeus Mozart completed on June 20, 1783, in Vienna. It is among his most famous insertion arias – that is, pieces written as a replacement or addition to another opera. The aria was meant for Aloysia Weber, Mozart’s sister-in-law and one of the most important sopranos of her time.