In this context, the "prepare feature" likely refers to the series or a specific promotional feature for a release. Background on ISISIS / LBMSK

: It could also refer to a specific archive file containing "prepared" live sets or tracks intended for a "featured" performance at venues like Grelle Forelle or events like Zuckerwatt .

The string appears to be a specific naming convention or tag associated with the Austrian techno collective and label LBMSK (often linked to the artist ISISIS ).

is a techno artist and DJ based in Vienna, part of the LBMSK collective .

in this context may refer to a "rarity" or a compressed digital archive (.rar file) often used in the underground electronic scene for sharing unreleased tracks, sample packs, or "secret" edits. The "Prepare" Feature The "prepare feature" typically relates to:

The repetitive "I S I S" or is their primary branding and can be found across platforms like SoundCloud and Musicboard .

: The label frequently features artists in their podcast or mix series. "I S I S I S I S rar — prepare feature" may be the specific filename or internal tag for an upcoming ISISIS set or rarities collection being prepared for a spotlight.