{"leader":"00682ncs0 22002051i 4500","fields":[{"001":"MUS0056104"},{"005":"20251215032402.0"},{"100":{"subfields":[{"a":"20130827b18101840||||0itac50      ba"}],"ind1":" ","ind2":" "}},{"102":{"subfields":[{"a":"it"}],"ind1":" ","ind2":" "}},{"110":{"subfields":[{"a":"bzu||||||||"}],"ind1":" ","ind2":" "}},{"200":{"subfields":[{"a":"Biblioteca dell'arpista"}],"ind1":"1","ind2":" "}},{"210":{"subfields":[{"a":"Milano"},{"c":"Ricordi "},{"d":"[1819]"}],"ind1":" ","ind2":" "}},{"620":{"subfields":[{"a":"IT"},{"d":"Milano"},{"3":"MUSL002184"}],"ind1":" ","ind2":" "}},{"712":{"subfields":[{"a":"Ricordi, G. & C."},{"3":"MUSV055322"},{"4":"650"}],"ind1":"0","ind2":"2"}},{"791":{"subfields":[{"a":"G. Ricordi & C."},{"3":"MUSV028148"},{"z":"Ricordi, G. & C."}],"ind1":"0","ind2":"2"}},{"791":{"subfields":[{"a":"Ricordi Officine"},{"3":"MUSV055344"},{"z":"Ricordi, G. & C."}],"ind1":"0","ind2":"2"}},{"791":{"subfields":[{"a":"Ricordi Stabilimento"},{"3":"MUSV055347"},{"z":"Ricordi, G. & C."}],"ind1":"0","ind2":"2"}},{"791":{"subfields":[{"a":"Regio stabilimento musicale Ricordi"},{"3":"SBNV037592"},{"z":"Ricordi, G. & C."}],"ind1":"0","ind2":"2"}},{"801":{"subfields":[{"a":"IT"},{"b":"IT-000000"},{"c":"20130827"}],"ind1":" ","ind2":"3"}},{"977":{"subfields":[{"a":" 35"}],"ind1":" ","ind2":" "}}]}