1: [Young]
Before a young Riff is mature enough to enter a symbiotic kinship with a living instrument, it is first given an artificial guitar to watch over. This lifelike guitar not only trains Riffs to be effective caregivers to their future organic instruments, but also provides them with a stimulating toy to fidget with when they get fussy.
2: [Adult]
Despite the effortless cool that all Riffs seem to exude, these feathery frontmen actually care quite deeply about their appearance. Their fashionably unkempt hair is a testament to this vanity. It is thus unsurprising that when a Riff begins to molt, it relies on its stringed companion for frequent flattery.
3: [Prismatic]
This Riff returned from the Prism Gate forever changed! It seems like the portal may have glitched and accidentally crossed over with the realm of Helmoth instead; besides having a new guitar (apparently on loan from a certain Grimnir Brawlfist), this influence of the Rage Brewer is evident in all aspects of this rocker's new appearance - extraordinary!