The document discusses the Stroh violin, an instrument invented in 1899 by John Matthias Augustus Stroh. The Stroh violin is a mechanically amplified string instrument that projects sound through metal resonators and horns attached to its body, making it much louder than a standard wooden violin. It was particularly useful for early phonographic recording due to its ability to produce a fuller, louder sound. The document also provides brief biographical information about Romanian singer Inna, noting she adopted the stage name in 2008 and produces house music, signing with Atlantic Records in 2014 and producing a successful collaboration with J Balvin.

1. cristi
Traditional instrument and a
musician from my country

2. Instrument : Stroh violin
The Stroh violin or Stroviol is a type of stringed musical instrument that is
mechanically amplified by a metal resonator and horn attached to its body.
The name Stroviol refers to a violin, but other instruments have been
modified with the amplification device, including the viola, cello, double
bass, ukulele, mandolin, and guitar.John Matthias Augustus Stroh, an
electrical engineer in London, invented the instrument in 1899.

3. Stroh violin description
The Stroh violin has two horns, one positioned at the end of the fingerboard
to project the sound to an audience or recording horn, and a smaller
monitoring horn that allowed the player to hear their own sound more
clearly.
The Stroh violin is much louder than a standard wooden violin, and its
directional projection of sound made it particularly useful in the early days
of phonographic recording. Wooden violins recorded poorly with the early
acoustic-mechanical recording method, and the Stroh violin improved this
by producing a fuller, louder sound.

4. Musician : Inna
Inna (Elena Alexandra Apostoleanu) is a Romanian singer and composer. He
adopted the stage name of "Alessandra" in 2008; That same year, he changed his
stage name to "Inna" and started releasing house music. She’s 32 years old and
she’s from Mangalia, Rumania. In 2014, Inna signed with
Atlantic Records and launched the successful "Cola Song" with
J Balvin, which was used to promote the FIFA World Cup that
year but she became famous in 2010 when she produced a
global success with the single "Sun Is Up"