Joseph Haydn's (1732-1809) last solo concerto was composed to help with an experiment: in an effort to break through the trumpet's limitations Anton Weidinger - a trumpeter of the Vienna Court Orchestra - devised a new kind of trumpet with keys (like those on the modern saxophone) which made it possible to fill in the missing notes of the scale. This brilliant concerto (Allegro, Andante, Allegro) immediate became a great success and the most popular Haydn ever wrote. The songful middle movement ...