BUR #26110 has been approved by @nonamethanks.
mass update frederic_chopin trusty_bell -> character:frederic_chopin_(trusty_bell) -frederic_chopin
rename frederic_chopin_(cosplay) -> frederic_chopin_(trusty_bell)_(cosplay)
Almost all posts under Frederic Chopin tag refer to Trusty Bell character and not to his namesake. To avoid confusion, these posts should be moved to a new tag.
And on the related cosplay tag, all posts refer to Trusty Bell character, so it should be renamed.
Updated