In what year was the album “Somer” released by Spoegwolf?

In what year was the album “Somer” released by Spoegwolf?: The album “Somer” was released in 2015 by Spoegwolf, featuring 11 tracks.
What is the most successful song from the album “Somer” by Spoegwolf?: “Bittermaan” is the biggest hit from the album “Somer” by Spoegwolf.

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