A testament to how raw Nirvana were at the time of the recording: forgetting that they were already tuned down a step, Kurt Cobain and Krist Novoselic tuned down a further step, to C, explaining the extremely heavy sound, which they dubbed "The Doom Pop Experiment." Novoselic recalled in a Seattle Weekly
interview: We recorded a bunch of tunes in that setup - like on the first day of recording. We came back the next day and decided the idea wasn't so hot, and we recorded over most of it with things tuned back up a little. In fact, 'Blew,' with that growly bass, is the only survivor of that experiment."
Matt - Millbrae, CA, for above 2