 Leopold Mozart became acquainted with Eckard during his visit to Paris in the winter of 1763–4, and expressed high regard for him.Grimm, in his Correspondence littéraire, called Eckard ‘the strongest’ of all Parisian composers, stating that ‘he has genius, the most beautiful ideas, with a manner of playing full of feeling and an extraordinary lightness’.That this was not merely a momentary captivation of the Parisian musical circles is attested by J.-B.