The Virgils moved to
New York City in 1883 and developed a soundless keyboard with adjustable weights on the keys for silent practice, called the Techniphone, also known as the Virgil clavier. Almon eventually obtained eight patents for this device and wrote articles for music journals which included
The Musical Courier, The Etude, and
The Musician. Antha also wrote The
Virgil Clavier Method, Foundation Exercises, Book 1 was published in 1889. The Virgil Clavier Company was formed in 1890 and Antha opened the Virgil Piano School in New York in 1891. Almon opened Virgil Piano Schools in England and Germany in 1895, followed by schools in Chicago (1896), Boston (1899), and other cities including St. Petersburg, Florida. Althea’s students included
Carrie Burpee Shaw. == Tekniklavier ==