These midi file accompaniments can be very useful for practice if played through a good sound card or keyboard. I got them from the this site, http://www.trumpetstudio.com/midi.html which also has a number of other midi's, including the Arutunian trumpet concerto and the Hummel trumpet concerto. The rest of the site is also well worth a visit, especially for trumpet players Midi files Haydn 1st movement Haydn 2nd movement Haydn 3rd movement