This book is notorious among Italian conservatory students and serious musicians for one reason:
Solfeggio Secondo Corso by Poltronieri Search Intent: Acquisition of digital (PDF) teaching material. Status: Analysis of availability, copyright status, and content. Poltronieri Solfeggio Secondo Corso Pdf Download -BEST
: For specific exercises, MuseScore sometimes has community-transcribed versions of individual "Solfeggio Cantato" pieces from the Poltronieri series. Online Study Aids This book is notorious among Italian conservatory students