Search “accordion method” on IMSLP – you will find several public domain methods from the 1910s–1920s (e.g., Sedlak method, Melodia method). They are not Anzaghi, but they cover basic technique.
From available descriptions and library records of the Anzaghi method (e.g., Carisch editions), exercise 22 often introduces:
No exact musical example is reprinted here; instructors should refer to their legal copy. Metodo Anzaghi Per Fisarmonica Pdf 22
The Méthode pour l’accordéon by Maia (public domain, published before 1925) is available on IMSLP. It is older but useful for basics.
The availability of this specific PDF might be limited, and it's essential to consider copyright laws and the legitimacy of sources when searching for downloadable content. Here are a few suggestions on where to start: Search “accordion method” on IMSLP – you will
Channels like Accordion Love, Moshe Accordion, or George Bachich offer free PDF exercise sheets that complement the early Anzaghi style.
Before diving into the PDF hunt, you must understand the man behind the method. Luigi Anzaghi (1902-1970) was one of Italy’s most influential accordion pedagogues. At a time when the accordion was often dismissed as a folk instrument, Anzaghi worked tirelessly to legitimize it within conservatories. No exact musical example is reprinted here; instructors
He developed a didactic system based on rational fingerings, progressive difficulty, and—uniquely—a deep respect for both the sistema piano (piano accordion) and sistema a bottoni (button accordion). His most famous work, the Metodo per Fisarmonica, was published by Ricordi (the legendary classical music publisher) and remains in print today.
Anzaghi’s approach is often compared to Hanon for piano, but it is far more musical. It is not just mechanical; it teaches phrasing, dynamics, and the specific physical nuances of the bellows.