Haydn's Symphony No. 31 from 1765, known as the 'Horn Signal', lends it's name to this 13th volume of the Haydn 2032 series. Not only does the symphony feature four horns in their full majesty, but the entire ensemble of Il Giardino Armonico, directed with ardour by Giovanni Antonini, perform this music with characteristic impetuousness. The numbered vinyl recording that accompanies this volume includes a musicological introduction, a CD of the same programme, and a download code (like every vinyl release in the Haydn 2032 series). This particular volume also includes a catalogue of all the recordings already released and gives us another opportunity to admire the images taken by the photographers of the Magnum agency, our partner from the outset of the series.