Pierre Langlois <pierre.langlois@gmx.com> writes:

> * gnu/packages/music.scm (libechonest): New variable.
> ---
>  gnu/packages/music.scm | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>
> diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
> index ce874ac43..84c537d86 100644
> --- a/gnu/packages/music.scm
> +++ b/gnu/packages/music.scm
> @@ -9,6 +9,7 @@
>  ;;; Copyright © 2016 John J. Foerch <jjfoerch@earthlink.net>
>  ;;; Copyright © 2016 Alex Griffin <a@ajgrf.com>
>  ;;; Copyright © 2017 ng0 <contact.ng0@cryptolab.net>
> +;;; Copyright © 2017 Pierre Langlois <pierre.langlois@gmx.com>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -2050,6 +2051,32 @@ detailed track info including timbre, pitch, rhythm and loudness information.
>  @end enumerate\n")
>      (license license:bsd-3)))
>  
> +(define-public libechonest
> +  (package
> +    (name "libechonest")
> +    (version "2.3.1")
> +    (source (origin
> +              (method git-fetch)
> +              (uri (git-reference
> +                     (url "git://anongit.kde.org/libechonest.git")
> +                     (commit "6895a77a46c9bd4e009ae08515bd91dc3cfbf548")))
> +              (file-name (string-append name "-" version "-checkout"))

Could you add a comment explaining why we can't use a normal release
tarball here?

> +              (sha256
> +               (base32
> +                 "0xbavf9f355dl1d3qv59x4ryypqrdanh9xdvw2d0q66l008crdkq"))))
> +    (build-system cmake-build-system)
> +    (arguments
> +     '(#:tests? #f)) ; Tests require Internet access
> +    (inputs
> +      `(("qt" ,qt-4)
> +        ("qjson" ,qjson)))

Same comment here about using Qt5 by default (if possible), and adding
qt4 variants where necessary.

> +    (home-page "https://projects.kde.org/projects/playground/libs/libechonest")
> +    (synopsis "C++/Qt classes to interface with The Echo Nest API")
> +    (description "libechonest is a collection of C++/Qt classes designed to make

@code{libechonest} ...

> + a developer's life easy when trying to use the APIs provided by The Echo
> +Nest.")

Could you explain briefly what "The Echo Nest" is here?

> +    (license license:gpl2)))

Do the sources explicitly specify "version 2 only"? Otherwise it should
probably be gpl2+. Otherwise this package LGTM.

> +
>  (define-public python-pylast
>    (package
>      (name "python-pylast")
> -- 
> 2.11.1