Assertion: valve trombone | /r/AtLocation | vienna
Facets:
Source sentences:
text: A valved trombone, first produced in Vienna in the 1820s, is frequently used in Latin countries, and by some jazz musicians, but is inferior in tone quality to the slide trombone.
text: Valve trombones developed sometime around 1820, first produced in Vienna, Austria.
text: A valved trombone, first produced in Vienna in the 1820s, is frequently used in Latin countries, and by some jazz musicians, but is inferior in tone quality to the slide trombone.