Legendary Guitar Riffs in Opposite Keys

We all have our favorite guitar riffs, some of which we'd recognize within the first note of the song. What if the guitar player who wrote your favorite riff was in a different mood when they wrote it, though? The outcome of their creative process might have been... let's say... different. Here's a take on how certain iconic guitar riffs would have turned out in that bizarre scenario, some of which may be surprisingly good, others unsurprisingly awful.