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"Describe the internals of your implementation, but keep the discussion on a high level. Discuss important design decisions you made in the implementation. Also discuss how implementation problems may have affected the usability of your interface."
Evaluation
Our users were friends from our living groups who had varying levels of interest in music. While they're all MIT students and so might not be generally representative, MIT students seem to have a pretty wide range of musical inclination and so weren't a particularly bad sampling of our user population. Our app aims to be usable by people with varying levels of music experience and who are probably somewhat younger, creative and tech-savvy.
We conducted user tasks by telling the user the purpose of the app (record songs without having to figure out the musical notation and when you're on the go) and the target audience (should be usable by people without a lot of musical experience).
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