Summary

as of same issue in MC-262253

The "Music composed by" section doesn't appear in game either in credits.json . Daniel Rosenfeld, Kumi Tanioka, Lena Raine, and Aaron Cherof should all be credited as music composers.

Addon/Resource packs: No

Attachments: Yes

Verified build version: 1.20.0.22

Notepad Comparison 

compare in 1.19.81 vs 1.20.0.22 credits.json

for finding list comparison

Actual Screenshot

Update on 8/6/23: This issue has been fixed in 1.20.0 (Which where fixed in 1.20.0.24 Preview)