Antonio Lucio Vivaldi (4 March 1678 – 28 July 1741) was an Italian Baroque composer, virtuoso violinist, teacher and cleric.
A concerto (from the concerto, plural concerti or, often, the anglicised form concertos) is a musical composition usually composed in three parts or movements, in which (usually) one solo instrument (for instance, a piano, violin, cello or flute) is accompanied by an orchestra or concert band.
Figured bass, or thoroughbass, is a kind of musical notation in which numerals and symbols indicate intervals, chords, and non-chord tones, in relation to the bass note they are placed above or below.
A string is the vibrating element that produces sound in string instruments such as the guitar, harp, piano, and members of the violin family.
The violin, also called a fiddle, is a string instrument, usually with four strings tuned in perfect fifths.