This is a song ("Black Window") from a cassette-only release by Auscultation. The album, L'etreinte Imaginaire ('imaginary embrace") can be purchased here in cassette form (obviously) or as digital files. Auscultation is an Oregon-based musician named Joe Shanahan. An earlier release, cleverly titled S/T, came out in 2014. Reviews of L'etreinte imaginaire here.