"“Memory in Motion: Percussion in Surround” was a research project developed to examine how percussionists memorize musical actions within ensembles. As part of this research, director Aiyun Huang commissioned new works to compliment selected existing repertoire. Zihua Tan wrote “Sorites” to compliment Iannis Xenakis’ “Persephassa” and alcides lanza wrote “mnais mnemes” to compliment his own earlier composition “sensor VI.” In both cases, the composers were asked to use the identical setup and notational system as that of the existing works. By sharing this common DNA, these unique compositions synergistically flow together to form an unusually powerful listening experience."