from what I understood echonest api is gone
At least one package depend on it
I think this package should be removed at some point
see also: https://bugs.gentoo.org/show_bug.cgi?id=587976
If I recall correctly, Nikoli has renounced his maintainership (and the metadata wasn't updated). If someone else from proxy-maint can confirm, I'd recommend passing this bug off to ssuominen and Project:Sound to make the decision on how to proceed. Just a side note for the maintainers of clementine (also nikoli, proxy-maint, and sound [should just be sound at this point per previous]), there is an upstream request to make this package an optional dep for clementine https://github.com/clementine-player/Clementine/issues/5384 which you might want to push for/forward.
Looks like Tomahawk uses this.
rick rick # emerge --depclean libechonest -pv
Calculating dependencies... done!
media-libs/libechonest-2.3.1-r1 pulled in by:
media-sound/tomahawk-9999 requires >=media-libs/libechonest-2.3.1:0/2.3=[qt5]
(In reply to rick vernam from comment #3)
> Looks like Tomahawk uses this.
> rick rick # emerge --depclean libechonest -pv
> Calculating dependencies... done!
> media-libs/libechonest-2.3.1-r1 pulled in by:
> media-sound/tomahawk-9999 requires
You will need to rebuild tomahawk-9999. It was dropped a month ago:
Author: Andreas Sturmlechner <firstname.lastname@example.org>
Date: Tue Feb 21 01:40:38 2017 +0100
media-sound/tomahawk: Drop media-libs/libechonest
Upstream commit ed9a02764431d9e2bb29c479db23396a647ed842