For 10 points, name this home country of Muzio Clementi, Luigi Cherubini, and Antonio Vivaldi.
An irritable composer born in this country commemorated the beheading of Louis XVI with his Requiem in C minor. Erik Satie's Sonatine bureaucratique parodies a sonatina by a composer born in this country who taught John Field. That composer, who is not Carl Czerny, wrote a set of piano etudes called Gradus ad Parnassum. A composer born here wrote operas like Lodoïska and a 1797 Médée revived by Maria Callas. Friedrich Grützmacher altered the (*) Cello Concerto No. 9 of one composer from this country who is more famous for a minuet from his String Quintet in E major. Another composer from here included concerti for various groups of instruments in L'Estro Armonico and evoked a storm in "Summer" from The Four Seasons. For 10 points, name this home country of Muzio Clementi, Luigi Cherubini, and Antonio Vivaldi.
An irritable composer born in this country commemorated the beheading of Louis XVI with his Requiem in C minor.
Italy