7

Released in late 2013, '7' represents one of the most significant stylistic pivots in deadmau5's discography. Originally uploaded to SoundCloud as a series of experiments, the EP eschews all traditional EDM tropes in favor of solo piano compositions. The project is a conceptual exploration of the seven deadly sins (Acedia, Avaritia, Gula, Invidia, Ira, Luxuria, and Superbia). Sonically, it aligns more closely with the post-classical minimalism of Erik Satie or Philip Glass than with progressive house. The recording quality is intimate and warm, likely utilizing felted piano or close-mic techniques to capture a soft, organic texture. While fans were initially surprised by the lack of electronic elements, '7' has since been praised for its melodic sophistication and emotional honesty. It highlights the 'mathematical' soul of Zimmerman's songwriting, proving that his ability to craft compelling motifs transcends genre and technology.