Written by composer Zvonimir Nagy, here are his notes about the piece:

Being my most personal piece to date, Anima Animæ depicts by musical means certain growth cycles of the human life, in part suggesting more spiritual ramifications of 'anima animae', or the birth of 'a soul of the soul'. The piece is constructed in two parts, the second of which redefines the musical structure and form of the first.

Part I Very fast, from "known" time
Part II Becoming fast, towards "unknown" time, like a lullaby

Anima Animae was commissioned by the 2018 Charlotte New Music Festival for the Beo String Quartet.

Anima Animæ - Part II

With 45 world premieres to its credit and 100+ concert works played throughout the United States, South America, and Europe, the iconoclastic Beo String Quartet does what it loves best: playing classical repertoire, contemporary, rock, and experimental music. From the Latin “to make happy,” Beo started out as a lark. Two Mexican-American brothers, Jason Neukom and Sean Neukom, decided to record a song entitled “Happy, Happy,” composed by Sean, but for that they would need two more players. And so in 2015 the Beo String Quartet was formed. Touring the world, composing, performing, recording, teaching, and having fun, Beo has since then founded Beo Publishing, built a recording studio, and started its own recording label, NeuKraft Records.