The most widely known version is composed by Siro Merlo (often credited as S. Merlo). It is a standard piece in Italian Catholic liturgical music.
Puoi trovare diverse versioni dello spartito, da quelle per coro a quelle con accordi per chitarra: benedizione a frate leone spartito pdf 13
It is crucial to remember that most modern compositions of the Benedizione a Frate Leone are under copyright – especially if composed after 1928 (in the US) or after 1970 in Europe. Marco Frisina’s works, for example, are administered by Edizioni Paoline and EDB (Edizioni Dehoniane Bologna). The most widely known version is composed by
Some websites that collect PDFs of sacred music (such as ChoralWiki, Scribd, or archive.org) assign an ID number to uploaded files. “13” might simply be the 13th file in a given folder or the version number. CantiLiturgici