Nowhere near equally. "Halloween music" is much rarer, and doesn't get blasted in shops and on the radio 24/7 for a month. "Halloween films" are also barely a thing, and horror films don't count.
a month if you're lucky. they started blasting it a week into November where I work. I'm so tired of hearing the same songs over and over again, and the 6 different covers of "All I Want For Christmas Is You"
I'm at the point where I spend so much time being bitter about Christmas music being played too early that when December finally rolls around things start feeling surreal when I can't whinge about it anymore.