But, wouldn't that mean that if you share the same email account on your Desktop and Phone, that using a different key on your phone would mean you could not de

But, wouldn't that mean that if you share the same email account on your Desktop and Phone, that using a different key on your phone would mean you could not decrypt emails intended for your Desktop? My understanding was that you can associate a key with your email address, does this just mean you would have two keys associated, one for "me@me.com Desktop" and one for "me@me.com Phone"?