Handheld musical instruments and headphones fail to GC

[GDNgit]

[2022-10-10T15:13:22] Beginning search for references to a /datum/song/headphones. [2022-10-10T15:13:23] Finished searching globals [2022-10-10T15:15:21] Finished searching atoms [2022-10-10T15:15:23] Found /datum/song/headphones [0x2101ebb4] in list World -> /datum/instrument/hardcoded/piano [0x21001706] -> songs_using (list). [2022-10-10T15:15:34] Finished searching datums [2022-10-10T15:15:34] Finished searching clients [2022-10-10T15:15:34] Completed search for references to a /datum/song/headphones. [2022-10-10T15:15:34] GC: -- [0x2100000d] | /datum/song/headphones was unable to be GC'd -- [2022-10-10T15:22:43] Beginning search for references to a /datum/song/handheld. [2022-10-10T15:22:43] Finished searching globals [2022-10-10T15:24:42] Finished searching atoms [2022-10-10T15:24:44] Found /datum/song/handheld [0x2101ea86] in list World -> /datum/instrument/hardcoded/violin [0x2100170a] -> songs_using (list). [2022-10-10T15:24:55] Finished searching datums [2022-10-10T15:24:55] Finished searching clients [2022-10-10T15:24:55] Completed search for references to a /datum/song/handheld. [2022-10-10T15:24:55] GC: -- [0x2100000d] | /datum/song/handheld was unable to be GC'd --

Likely an order of operations issue

Steps to reproduce the problem: Delete em

When did the problem start happening: Likely since the refactor