Ortmann, Otto, 1889–1979
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL1657057A
- pdbooks.info ID: 109332
Otto Ortmann Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| On the melodic relativity of tones | 1926 | Author | |  | |  | | ||