Columbia subject headings:
Child musicians--History--19th century.
Italy--Emigration and immigration--History--19th century.
Musique des rues--New York (State)--New York--History--19th century.
Street music--England--London--History--19th century.
Street music--France--Paris--History--19th century.
Street music--New York (State)--New York--History--19th century.
Harvard subject headings:
Child musicians--History--19th century.
Italy--Emigration and immigration--History--19th century.
Street musicians--England--London--History--19th century.
Street musicians--France--Paris--History--19th century.
Street musicians--New York (State)--New York--History--19th century.
Princeton subject headings:
Child musicians--History--19th century.
Italy--Emigration and immigration--History--19th century.
Street musicians--England--London--History--19th century.
Street musicians--France--Paris--History--19th century.
Street musicians--New York (State)--New York--History--19th century.