This is the third movement of Andrew List's String Quartet No. 5, titled "Time Cycles". Written in 2015, this string quartet is made up of five movements based on texts by TS Eliot. About this movement, entitled "Tranquil and serene", Mr. List quotes the following:

"Time past and time future allow but a little consciousness. To be conscious is not to be in time but only in time can the moment in the rose-garden, the moment in the arbour where the rain beat, the moment in the draughty church at smokefall be remembered; involved with time past and future."
-from TS Eliot's 'Burnt Norton'

String Quartet No. 5 "Time Cycles" - iii. Tranquil and serene

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.