The term ‘Gnoissenne’ is one of Satie’s own creations. There are competing theories as to whether the term refers to Gnostic theology or a dance of ancient Knossos. The piece definitely has a dance feel, with a strong rhythmic pattern in the left hand throughout. Personally, I don’t see any reason why it couldn’t be both.
Satie published this piece in 1893. Sheet music is available from IMSLP: https://imslp.org/wiki/Gnossiennes_(Satie%2C_Erik)
Recorded with Zoom H1 Handy Recorder.