Is this cassette rare given the low copy count?

Yes, with only 2 copies currently for sale, this release is quite limited in availability right now.

What is the genre of this release?

Esther Chlorine's Penumbra falls under the Electronic genre.

This cassette was released in 2013.

Name: Esther Chlorine – Penumbra (Cassette)
Brand: Esther Chlorine

Electronic

What Penumbra by Esther Chlorine is worth on the used market.

Esther Chlorine value — Discogs floor $7.31. Prices updated June 2026.

Label · Of PlantsFormat · CassetteGenre · Electronic

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Penumbra by Esther Chlorine (2013) on Cassette. The Discogs marketplace floor is $7.31 with 2 copies currently for sale.

Pressing, country, and condition (media + sleeve) move vinyl/CD values the most — first pressings and clean copies command a premium.

What this actually trades for — sold values by condition vs. what sellers are asking today

Condition	Value	Based on
Discogs floor	$7.31	eBay sold comps

Is this cassette rare given the low copy count?: Yes, with only 2 copies currently for sale, this release is quite limited in availability right now.
What is the genre of this release?: Esther Chlorine's Penumbra falls under the Electronic genre.
What year was this cassette released?: This cassette was released in 2013.