Il diapason.
Subtitle: Storia e vicende della sua normalizzazione.
Contributors: Righini, Pietro, joint author.
Publisher: ERI
Published: 1969
Place of publication: [Torino]
Language: ita
Number of pages: 134
Subjects: Musical pitch -- Standards.
Notes: At head of title: Ugo Leone, Pietro Righini.
"Documenti e allegati" (p. 101-122) in English, French or Italian.