Nirvana Official Page on Instagram: "Once upon a time, when "About a Girl"was produced according to the official sheet music published by Musicnotes.com under license from BMG Rights Management, it featured a structure in 4/4 time and presented a moderately fast rock tempo of 130 bpm. Composed in E minor, the track explores Cobain’s vocal range between B3 and A4, covering an interval of one octave and six notes. And regarding the musical construction of the song, it is marked by the simplicity o