If the expiration is simply 70 years after the death of the author in Italy, then (depending on what they think "publishing" a tune is in Italy) would stuff from these folks be seen as legit?

Blind Lemon Jefferson d. 1929
Barbecue Bob d. 1931
Jimmie Rodgers d. 1933
Eddie Anthony d. 1934
Blind Blake d. 1934
Charlie Patton d. 1934
Leroy Carr d. 1935
Clara Smith d. 1935
Bessie Smith d. 1937
Ma Rainey d. 1939
Blind Boy Fuller d. 1941
Peetie Wheatstraw d. 1941
etc.

Dorothy Scarborough died in 1935, so does that mean you can sing material from her 1925 book?