While current genomic and proteomic representations are visual, the demands of real-time monitoring with myriad inputs (whether it be in the lab or the operating room) necessitate alternative strategies.  Humans have tens of thousands of genes and myriad proteins.  It is impossible for a person to keep track of all of the gene expression and protein levels at any given time, unlike physiological factors – where there are only around twenty variables.  "Musical Gene Expression: 4-D Visualization and Display for Interaction and Expression" describes an approach to representing the core information in genomic and proteomic data in a manner that can be easily presented and interpreted via music.  We used sonification of genetic and proteomic data to develop a 4-D display for interaction and expression.  Three dimensions were utilized for visualizing interaction networks and the fourth dimension, time, was expressed through music.