Melleian is a gender where all the music is playing at once but one may not be able to make out the music, in turn, making it too jumbled and it may even be hard to hear.
One may also hear some songs ’louder’ than others. They may just sound clearer and more distinct to the individual.
This is a metaphor for experiencing many genders all at once, as in many songs playing all at once, and possibly not being able to distinct any of them. This is a multigender identity.
It's also a metaphor for perhaps feeling certains genders more prominently than others. In which case, one may want to look at genderlead, køngender, and collecting or hoarding related genders.
A less specific label would be plellian.
Etymology
’Melleian’ is a word mixture of melody, playlist, and listening.
History
This gender was coined due to wanting a static version of genderplaylist. It was coined by Reddit user u/hiitsyaz on the 7th of August, 2021.