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

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/pakchois-0.4-r2::gentoo  USE="nls" 363 KiB
[ebuild  N     ] net-libs/neon-0.34.0:0/27::gentoo  USE="expat nls pkcs11 ssl zlib -gnutls -kerberos -libproxy -test" 907 KiB
[ebuild  N     ] media-libs/musicbrainz-5.1.0-r2:5/1::gentoo  USE="-examples -test" 76 KiB

Total: 3 packages (3 new), Size of downloads: 1345 KiB