This is a gorgeous arrangement and some stirring vocals, horns worthy of Motown and slide guitar and strings that pull all the poetry out of Cobain’s song. I had to listen to it 3 times and sing very loudly along with it just to free myself from its spell. I still want more.
Myriad Ways 
love the arrangement, but hard to understand the singing and had to listen intently to figure out what he was saying, but the tone of his voice added to the music. strangely hypnotic….
I agree. The strength of Cobain’s music is in the powerful melding of music and personal poetry so that the feeling is in the combination not in either separately. I can shout or quietly sing a Nirvana song and it works whether I know all the words or even use some of my own in the mix, as Simpson does in this version. I think that is the main reason why Kirk Cobain’s music inspired so many people.