The remix put me on the map.

Apple Music credits Al Agami, Joe Belmaati and J. “TNT” Møller for composition and lyrics on its Covert Operations listing. The contemporary review’s producer line addresses the single it reviewed. Phase 5’s remix credit addresses a different recording. Writing “Phase 5 produced Deep Undercover” without naming a version would flatten those traces into one undifferentiated claim.

“Deep Undercover” appeared again on the 1993 album Covert Operations. A December 1993 Music & Media advertising supplement identified it among the album’s tracks and described much of that record as work with Phase 5. The supplement is contemporary evidence of how the album was promoted, not an independent accounting of who played or mixed each track. The album listing and the single issue also have distinct dates: a streaming page’s 1 January 1993 album date cannot erase the 1992 single.

Al Agami has described “Deep Undercover” as his debut single and said that the Phase 5 remix was what put him on the map. He identifies Phase 5 as his friend Henrik Marquart. These are first-person statements about the place of the record in his life. They should be identified as such, rather than converted into a numerical chart claim or a claim that every listener encountered the remix first.

The paper trail can corroborate a narrower part of the story. It puts the title on radio lists in 1992, identifies original and remix versions, and places the song in the next year’s album promotion. It cannot reconstruct the exact moment the artist’s career changed. His account tells us what that change meant to him; a dated review tells us what someone outside the studio published at the time. Both traces matter, and neither stands in for the other.

The photograph above brings Al Agami and Phase 5 together on a stage in 2016. That year Apple Music also lists an “I GO Deep Undercover” single by Al Agami and Phase 5. The later image and release show that the collaboration remained publicly visible. They do not prove what was recorded in 1992, who owns a particular master, or how remix income was divided.

A catalogue meant to protect a musical history should keep the original recording, the two remix edits, the album track and the later reworking distinct. Its fields must say whether a name denotes a writer, original producer, remixer or performer, and which object supplies the evidence. Otherwise a search result for one song quietly merges acts of creation that happened at different times.