question: Italian harpist, Abramo dall'Arpa, went to Vienna at the request of the Holy Roman Emperor, who served as what?
answer: Charles' representative in Germany and developed useful relationships with German princes
context: Title: Abramo dall'Arpa
  Passage: Abramo dall'Arpa (died 1566) was an Italian harpist and the likely grandfather of Abramino dall'Arpa.  In 1542, he played the part of Pan in a dramatic production at the court of Mantua.  He continued to serve the court under Guglielmo I Gonzaga in the 1550s and 1560s.  Around 1560, Ferdinand I asked him to come to Vienna, where he instructed the Emperor's children in music.
  Title: Giovanni Battista Buonamente
  Passage: Giovanni Battista Buonamente (ca. 1595 – 1642) was an Italian composer and violinist in the early Baroque era.  He served the Gonzagas in Mantua until about 1622, and from about 1626 to 1630 served the Holy Roman Emperor Ferdinand II, Holy Roman Emperor in Vienna.  Notably, in 1627 he played for the coronation festivities in Prague of Ferdinand III, son of the emperor.  He then served as the violinist of Madonna della Steccata church in Parma.  After a short service there, he arrived at his final position in 1633 of "maestro di cappella" at Assisi.
  Title: Ferdinand I, Holy Roman Emperor
  Passage: Ferdinand I (Spanish: "Fernando I" ) (10 March 1503 – 25 July 1564) was Holy Roman Emperor from 1558, king of Bohemia and Hungary from 1526, and king of Croatia from 1527 until his death.  Before his accession, he ruled the Austrian hereditary lands of the Habsburgs in the name of his elder brother, Charles V, Holy Roman Emperor.  Also, he often served as Charles' representative in Germany and developed useful relationships with German princes.
citations: Abramo dall'Arpa Ferdinand I, Holy Roman Emperor