The seventh volume of Marco Enrico Bossi’s Opera Omnia for organ contains the most important and meaningful pieces composedby him between 1906 and 1910, during the fruitful period in which he was the principal of the Liceo Musicale of Bologna. With these pieces, Italian organ literature acquired a new expressive dimension, catalysing the experiences that had already been consolidated in Europe in the course of the 19th century. The programme begins with the extensive Pièce héroïque op. 128, composed in 1906, whose title recalls César Franck’s famous piece. The theme chosen by Bossi reappeared later in Riccardo Zandonai’s Giulietta e Romeo. There follows the powerful Konzertstück op. 130 (1907), probably the most important organ piece composed in Italy. Here Bossi risesto the level of extraordinary creativeness that had been attained by a genius like Max Reger. The programme ends with 5 Pezzi in stile libero (Leggenda, Marcia funebre, Scena pastorale, Hora mystica, Hora gaudiosa), whichwere composed around 1910 and represent the crossroads of the most interesting organ experiences worked out in France, Germany and Italy. For the recording of these important pieces, as always, an instrument that belonged to Bossi’s musical world has been used: the splendid organ made in 1897 by Carlo Vegezzi-Bossi for the Chiesa del Sacro Cuore of Cuneo.