Facts
- Author
- Haslam, W. E.
- Language
- English
- Project Gutenberg No.
- 21400
- Released on Project Gutenberg
- May 9, 2007
- Bookshelves
- Music, How To ...
- Subjects
- Singing, Voice culture
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)