About Maria Spacagna
Mascagni: Lodoletta, MP3, amazon.com

Mascagni: Lodoletta, MP3, amazon.de
LINKS
Brief bio
johnrpierce.com Opera Pages
Maria Spacagna starred in an interesting recording, on four compact discs, containing a performance of Madama Butterfly in its original version, along with all the revisions that Puccini made. 

Madama Butterfly, CD, amazon.com