2.671 is an MIT MechE capstone class whose main project is to deliver a graduate school-quality research paper and poster detailing a measurement and data analysis project performed over the course of the semester. I chose to measure the harmonic characteristics of a singer’s output sound based on various qualitative vocal technique changes. With high standards for significance, I found statistically relevant relationships between various input and output characteristics I studied. In addition to the final research project, weekly labs in the class used principles from various core disciplines (controls, thermodynamics, mechanics, circuits) to complete engaging mini instrumentation and measurement projects. Comprehensive engineering documentation during the semester manifested itself in a lab notebook detailing all work completed in the class.