Music Information Retrieval (MIR) is making machines identify, what instruments, chords, notes and scales are in a song. Knowing this allows the machine to "tell you" what emotions a particular song will invoke. Students studying MIR typiclaly transform this research to radar, earthquakes, seizures, heart attacks and any other artificial intelligence fields requiring analysis of sinusoidal signals.
For my PhD I studied machine Learning of the mathematics of sinusoidal signals. Nowadays these signals are EEGs from the human brain, during my PhD we used musical waveforms beacuse they were easy to create. Here are some of my papers
We use the word "band" very loosely here! But a few professors from Denver University and Anschutz Medical School get together once a month and we "play music". The funniest thing about the band is that there are more degrees, and PhDs than there is musical ability but we have a lot of fun. :-), Click here to see scores of the music we play.