Identity in the credits
The LTAP preview makes the equivalence explicit: drums are credited to “Sean McCarthy aka Joan Darwin.”
Scaled Alps
Darwin appears on drums in multiple Scaled Alps texts and recordings, including the personnel listing for Cremation Diamonds and the “Southerly” preview.
EGOTERRORISM
Track 10, “Getting Rich Was Easy,” gives Darwin a larger studio role: production, keys and drums. The earlier 2023 work A Framed Scream had already identified the unreleased piece as a JQD & Joan Darwin recording.