Here's a long article that attempts to make sense of the keyword:
Most plausible in puzzle context: The string "nrop dlihcrarl" reversed and then (typo for "l ar" ? unlikely). nrop dlihcrarl
: He favors unpolished, dusty samples and distorted loops that create a "tired" or "nostalgic" atmosphere. Here's a long article that attempts to make
"lrarchild" → possible typo for "larchild" ? Or "lrar child" ? nrop dlihcrarl