These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] media-libs/id3lib-3.8.3-r10::gentoo  USE="-doc -static-libs" 929 KiB

Total: 1 package (1 new), Size of downloads: 929 KiB