Question: What choir is led by a member of the musical composition group of the early Baroque eras and the Renaissance?

Context paragraphs:
Bicinium: In music of the Renaissance and early Baroque eras, a bicinium (pl.  bicinia) was a composition for only two parts, especially one for the purpose of teaching counterpoint or singing.

Johannes Nucius: Johannes Nucius (also Nux, Nucis) (c. 1556 – March 25, 1620) was a German composer and music theorist of the late Renaissance and early Baroque eras.  Although isolated from most of the major centers of musical activity, he was a polished composer in the style of Lassus and penned an extremely influential treatise on the rhetorical application of compositional devices.

Claudio Pari: Claudio Pari (1574 – after 1619) was an Italian composer, of Burgundian birth, of the late Renaissance and early Baroque eras.  He was a competent madrigalist, well regarded by his peers, as well as a late representative of the musical style/ethos known as "musica reservata".

Madrigal: A madrigal is a secular vocal music composition of the Renaissance and early Baroque eras.  Traditionally, polyphonic madrigals are unaccompanied; the number of voices varies from two to eight, and most frequently from three to six.  It is quite distinct from the Italian Trecento madrigal of the late 13th and 14th centuries, with which it shares only the name.

Venetian polychoral style: The Venetian polychoral style was a type of music of the late Renaissance and early Baroque eras which involved spatially separate choirs singing in alternation.  It represented a major stylistic shift from the prevailing polyphonic writing of the middle Renaissance, and was one of the major stylistic developments which led directly to the formation of what is now known as the Baroque style.  A commonly encountered term for the separated choirs is "cori spezzati"—literally, separated choirs.

Vox Angeli Children's Choir: The Vox Angeli Children's Choir is a popular children's choir which originated from the Philippines.  The choir is made up boys and girls ages 8 – 15, and it recently established a youth choir for ages 16 and above.  The Choir is led by their Conductor, Sir Chris Borela, who is a member of the Madrigal singers, with assistant conductors Sir Jonathan Coo and Sir Sheen Sanchez.

Giulio Caccini: Giulio Romolo Caccini (also Giulio Romano) (8 October 1551 – buried 10 December 1618), was an Italian composer, teacher, singer, instrumentalist and writer of the very late Renaissance and early Baroque eras.  He was one of the founders of the genre of opera, and one of the most influential creators of the new Baroque style.  He was also the father of the composer Francesca Caccini.

Giulio Belli: Giulio Belli (ca. 1560 – 1621 or later) was an Italian composer of the late Renaissance and early Baroque eras.  He was a prolific composer during the transitional time between the two musical eras, and worked in many cities in northern Italy.

Lodovico Zacconi: Lodovico (or Ludovico) Zacconi (11 June 1555 – 23 March 1627) was an Italian composer and musical theorist of the late Renaissance and early Baroque eras.  He worked as a singer, theologian, and writer on music in northern Italy and Austria; for a time he was in the employ of Archduke Karl of Graz, and worked in Graz and Vienna.

Antonio Cifra: Antonio Cifra (1584?  – 2 October 1629 in Loreto) was an Italian composer of the Roman School of the Renaissance and early Baroque eras.  He was one of the significant transitional figures between the Renaissance and Baroque styles, and produced music in both idioms.

Supporting paragraphs: Vox Angeli Children's Choir Madrigal
Answer: Vox Angeli Children's Choir