Where can I look for the gear Árni Guðjónsson uses?

Find and submit the pianos, keyboards, synths, microphones, and other instruments used by Árni Guðjónsson.

If the artist is active on social media, check places like their Instagram feed and look for musical equipment they can be seen using.

You should also do a Google image search for things like "Árni Guðjónsson studio" and "Árni Guðjónsson live" and spot gear that way.