Black Moth Super Rainbow's music contains elements of psychelia, folk, electronica, pop and rock. Their distinctive sound is characterized by analog electronic instruments including the vocoder, Rhodes piano and Novatron.

A Graveface insert included inside the album Dandelion Gum describes them as such: "Deep in the woods of western Pennsylvania vocoders hum amongst the flowers and synths bubble under the leaf-strewn ground while flutes whistle in the wind and beats bounce to the soft drizzle of a warm acid rain. As the sun peeks out from between the clouds, the organic aural concoction of Black Moth Super Rainbow starts to glisten above the trees."