The pieces recorded on this CD stem from an all-pervading performance practice that deeply marked the musical taste of the nineteenth century: that of the 'transcription'. This practice enabled a widespread dissemination of the most popular opera passages well beyond the official circuits of the great theatres and, above all, in the sphere of holy rites. Arias, cavatinas, cabalettas and symphonies were plentiful everywhere: in many cases they were transcriptions of pieces by well-known composers (it was sufficient to give them a 'liturgical' title); more often they were homely elaborations. Almost all these pieces are being performed here for the first time in the modern age; the composers are practically unknown; in their music, famous opera themes are freely mixed with fanciful variations. The recordings were made using original period instruments: a wonderful nineteenth-century organ and a series of original brass instruments. In fact Marco Arlotti is sitting at the Adeodato Bossi Urbani 1874 organ and Michele Santi, a specialist in nineteenth-century trumpets, is playing seven different period instruments.