Lydigender is a modegender and musicgender that feels light and dreamy, or relates to the Lydian mode. One may feel that their gender can only be described using the Lydian mode. Alternatively, one's gender might change and/or fluctuate while listening to music that uses the Lydian scale, or while playing an instrument in the Lydian scale.
The term was coined by Tumblr user synpa-tee on July 27, 2021.
The lydigender flag was created by Tumblr user synpa-tee on August 3, 2021. There are four stripes: a pastel purple stripe, a pastel pink stripe, a pastel blue stripe, and a pastel lavender blue stripe. The colors have no meaning but are meant to be light and dream-like.