diff --git a/cms/README.md b/cms/README.md
index 0a6751e..62e8955 100644
--- a/cms/README.md
+++ b/cms/README.md
@@ -50,6 +50,9 @@ class MyModelPost(RelatedPost):
 Note: it is possible to assign a function as a bounded value; in such case, the
 function will be called using arguments **(post, related_object)**.
 
+At rendering, the property *info* can be retrieved from the Post. It is however
+not a field.
+
 ## Routes
 Routes are used to generate the URLs of the website. We provide some of the
 common routes: for the detail view of course, but also to select all posts or
diff --git a/cms/admin.py b/cms/admin.py
index 2cc6419..1a6a9fe 100644
--- a/cms/admin.py
+++ b/cms/admin.py
@@ -91,7 +91,6 @@ def inject_inline(model, inline, prepend = False):
     registry[model].inlines = inlines
 
 
-admin.site.register(models.Article, PostAdmin)
 admin.site.register(models.Comment, CommentAdmin)
 
 
diff --git a/cms/models.py b/cms/models.py
index 41696b3..5436bc6 100644
--- a/cms/models.py
+++ b/cms/models.py
@@ -166,7 +166,10 @@ class Post (models.Model, Routable):
         )
         return qs
 
-    def detail_url(self):
+    def url(self):
+        """
+        Return an url to the post detail view.
+        """
         return self.route_url(
             routes.DetailRoute,
             pk = self.pk, slug = slugify(self.title)
@@ -209,24 +212,6 @@ class Post (models.Model, Routable):
         abstract = True
 
 
-class Article (Post):
-    """
-    Represent an article or a static page on the website.
-    """
-    static_page = models.BooleanField(
-        _('static page'),
-        default = False,
-    )
-    focus = models.BooleanField(
-        _('article is focus'),
-        default = False,
-    )
-
-    class Meta:
-        verbose_name = _('Article')
-        verbose_name_plural = _('Articles')
-
-
 class RelatedPostBase (models.base.ModelBase):
     """
     Metaclass for RelatedPost children.
@@ -356,6 +341,7 @@ class RelatedPost (Post, metaclass = RelatedPostBase):
     class Meta:
         abstract = True
 
+    # FIXME: declare a binding only for init
     class Relation:
         """
         Relation descriptor used to generate and manage the related object.
diff --git a/cms/sections.py b/cms/sections.py
index 699347e..bd44526 100644
--- a/cms/sections.py
+++ b/cms/sections.py
@@ -203,7 +203,7 @@ class ListItem:
     date = None
     image = None
     info = None
-    detail_url = None
+    url = None
 
     css_class = None
     attrs = None
@@ -222,8 +222,8 @@ class ListItem:
                 continue
             if hasattr(post, i) and not getattr(self, i):
                 setattr(self, i, getattr(post, i))
-        if not self.detail_url and hasattr(post, 'detail_url'):
-            self.detail_url = post.detail_url()
+        if not self.url and hasattr(post, 'url'):
+            self.url = post.url()
 
 
 class List(Section):
@@ -243,6 +243,7 @@ class List(Section):
     object_list = None
     url = None
     message_empty = _('nothing')
+    paginate_by = 4
 
     fields = [ 'date', 'time', 'image', 'title', 'content', 'info' ]
     image_size = '64x64'
@@ -264,20 +265,32 @@ class List(Section):
     def get_object_list(self):
         return self.object_list
 
-    def get_context_data(self, *args, **kwargs):
-        context = super().get_context_data(*args, **kwargs)
+    def get_context_data(self, request, object=None, *args, **kwargs):
+        if request: self.request = request
+        if object: self.object = object
+        if kwargs: self.kwargs = kwargs
 
         object_list = self.object_list or self.get_object_list()
         if not object_list and not self.message_empty:
             return
+        self.object_list = object_list
 
+        context = super().get_context_data(request, object, *args, **kwargs)
         context.update({
             'base_template': 'aircox/cms/section.html',
             'list': self,
-            'object_list': object_list,
+            'object_list': object_list[:self.paginate_by]
+                           if object_list and self.paginate_by else
+                           object_list,
         })
         return context
 
+    def need_url(self):
+        """
+        Return True if there should be a pagination url
+        """
+        return self.paginate_by and self.paginate_by < len(self.object_list)
+
 
 class Comments(List):
     """
diff --git a/cms/templates/admin/base_site.html b/cms/templates/admin/base_site.html
deleted file mode 100644
index 1e8b0e8..0000000
--- a/cms/templates/admin/base_site.html
+++ /dev/null
@@ -1,51 +0,0 @@
-{% extends "admin/base.html" %}
-
-{% block extrahead %}
-{% include 'autocomplete_light/static.html' %}
-<style>
-
-/** autocomplete override **/
-.autocomplete-light-widget .deck [data-value] .remove {
-  float: right;
-}
-
-.autocomplete-light-widget .deck [data-value],
-.autocomplete-light-widget .deck .choice {
-  display: block;
-}
-
-.control-group .add-related,
-.inline-group .add-related {
-  vertical-align: bottom;
-}
-
-
-/** suit **/
-.controls textarea,
-.controls .vTextField {
-    width: calc(100% - 10px);
-}
-
-
-/** grappelli **/
-.grp-autocomplete-wrapper-m2m:focus, .grp-autocomplete-wrapper-m2m.grp-state-focus,
-.grp-autocomplete-wrapper-m2m {
-  background: rgba(255, 255, 255, 0.2);
-  border: none;
-  box-shadow: none;
-}
-
-.grp-autocomplete-wrapper-m2m ul.grp-repr li.grp-search {
-  background-color: #FDFDFD;
-  border: 1px solid #CCC;
-}
-
-.grp-autocomplete-wrapper-m2m ul.grp-repr li {
-  float: none;
-  display: block;
-}
-
-</style>
-
-{% endblock %}
-
diff --git a/cms/templates/aircox/cms/list.html b/cms/templates/aircox/cms/list.html
index 257808b..c60f5f1 100644
--- a/cms/templates/aircox/cms/list.html
+++ b/cms/templates/aircox/cms/list.html
@@ -13,8 +13,8 @@
         {% for k, v in item.attrs.items %}
         {{ k }} = "{{ v|addslashes }}"
         {% endfor %} >
-    {% if item.detail_url %}
-        <a href="{{ item.detail_url }}">
+    {% if item.url %}
+        <a href="{{ item.url }}">
     {% endif %}
     {% if 'image' in list.fields and item.image %}
     <img src="{% thumbnail item.image list.image_size crop %}">
@@ -65,7 +65,7 @@
     </div>
 
 
-    {% if item.detail_url %}
+    {% if item.url %}
     </a>
     {% endif %}
 {% empty %}
diff --git a/cms/templatetags/aircox_cms.py b/cms/templatetags/aircox_cms.py
index 2860c61..9e250e6 100644
--- a/cms/templatetags/aircox_cms.py
+++ b/cms/templatetags/aircox_cms.py
@@ -16,7 +16,7 @@ def threads(post, sep = '/'):
             posts.insert(0, post)
 
     return sep.join([
-        '<a href="{}">{}</a>'.format(post.detail_url(), post.title)
+        '<a href="{}">{}</a>'.format(post.url(), post.title)
         for post in posts if post.published
     ])
 
diff --git a/cms/views.py b/cms/views.py
index 425c725..b6db8d6 100644
--- a/cms/views.py
+++ b/cms/views.py
@@ -118,10 +118,11 @@ class PostListView(PostBaseView, ListView):
         if not self.list:
            self.list = sections.List(
                truncate = 32,
+               paginate_by = 0,
                fields = ['date', 'time', 'image', 'title', 'content'],
            )
         else:
-            self.list = self.list()
+            self.list = self.list(paginate_by = 0)
             self.template_name = self.list.template_name
             self.css_class = self.list.css_class
 
diff --git a/cms/website.py b/cms/website.py
index 8802689..982be35 100644
--- a/cms/website.py
+++ b/cms/website.py
@@ -51,8 +51,7 @@ class Website:
                 self.set_menu(menu)
 
         if self.comments_routes:
-            self.register_comments_routes()
-
+            self.register_comments()
 
     def name_of_model(self, model):
         """
@@ -62,7 +61,7 @@ class Website:
             if model is _model:
                 return name
 
-    def register_comments_routes(self):
+    def register_comments(self):
         """
         Register routes for comments, for the moment, only
         ThreadRoute
diff --git a/liquidsoap/admin.py b/liquidsoap/admin.py
index f82c78b..ed26b1c 100644
--- a/liquidsoap/admin.py
+++ b/liquidsoap/admin.py
@@ -3,6 +3,6 @@ import aircox.liquidsoap.models as models
 
 @admin.register(models.Output)
 class OutputAdmin (admin.ModelAdmin):
-    list_display = ('id', 'type', 'station')
+    list_display = ('id', 'type')
 
 
diff --git a/liquidsoap/management/commands/liquidsoap.py b/liquidsoap/management/commands/liquidsoap.py
index c68ef7d..17a9a4b 100644
--- a/liquidsoap/management/commands/liquidsoap.py
+++ b/liquidsoap/management/commands/liquidsoap.py
@@ -96,7 +96,7 @@ class Monitor:
         # - preload next diffusion's tracks
         args = {'start__gt': prev_diff.start } if prev_diff else {}
         next_diff = programs.Diffusion \
-                        .get(controller.station, now, now = True,
+                        .get(now, now = True,
                              type = programs.Diffusion.Type.normal,
                              sounds__isnull = False,
                              **args) \
@@ -194,30 +194,19 @@ class Command (BaseCommand):
             help='write configuration and playlist'
         )
 
-        group = parser.add_argument_group('selector')
         group.add_argument(
-            '-s', '--station', type=int, action='append',
-            help='select station(s) with this id'
-        )
-        group.add_argument(
-            '-a', '--all', action='store_true',
-            help='select all stations'
+            '-s', '--station', type=str,
+            default = 'aircox',
+            help='use this name as station name (default is "aircox")'
         )
 
     def handle (self, *args, **options):
-        # selector
-        stations = []
-        if options.get('all'):
-            stations = programs.Station.objects.filter(active = True)
-        elif options.get('station'):
-            stations = programs.Station.objects.filter(
-                id__in = options.get('station')
-            )
-
         run = options.get('run')
         monitor = options.get('on_air') or options.get('monitor')
-        self.controllers = [ utils.Controller(station, connector = monitor)
-                                for station in stations ]
+        self.controller = utils.Controller(
+            station = options.get('station'),
+            connector = monitor
+        )
 
         # actions
         if options.get('write') or run:
diff --git a/liquidsoap/models.py b/liquidsoap/models.py
index 12c5775..6764c84 100644
--- a/liquidsoap/models.py
+++ b/liquidsoap/models.py
@@ -1,24 +1,19 @@
+from enum import Enum, IntEnum
+
 from django.db import models
 from django.utils.translation import ugettext as _, ugettext_lazy
 
-import aircox.programs.models as programs
-
 
 class Output (models.Model):
     # Note: we don't translate the names since it is project names.
-    Type = {
-        'jack': 0x00,
-        'alsa': 0x01,
-        'icecast': 0x02,
-    }
+    class Type(IntEnum):
+        jack = 0x00
+        alsa = 0x01
+        icecast = 0x02
 
-    station = models.ForeignKey(
-        programs.Station,
-        verbose_name = _('station'),
-    )
     type = models.SmallIntegerField(
         _('output type'),
-        choices = [ (y, x) for x,y in Type.items() ],
+        choices = [ (int(y), _(x)) for x,y in Type.__members__.items() ],
         blank = True, null = True
     )
     settings = models.TextField(
diff --git a/liquidsoap/utils.py b/liquidsoap/utils.py
index 447693d..88b7141 100644
--- a/liquidsoap/utils.py
+++ b/liquidsoap/utils.py
@@ -295,12 +295,11 @@ class Controller:
         files dir.
         """
         self.id = station.slug
-        self.name = station.name
-        self.path = os.path.join(settings.AIRCOX_LIQUIDSOAP_MEDIA, station.slug)
+        self.name = station
+        self.path = os.path.join(settings.AIRCOX_LIQUIDSOAP_MEDIA,
+                                 slugify(station))
 
-        self.station = station
-        self.station.controller = self
-        self.outputs = models.Output.objects.filter(station = station)
+        self.outputs = models.Output.objects.all()
 
         self.connector = connector and Connector(self.socket_path)
 
@@ -310,8 +309,7 @@ class Controller:
             source.id : source
             for source in [
                 Source(self, program)
-                for program in programs.Program.objects.filter(station = station,
-                                                             active = True)
+                for program in programs.Program.objects.filter(active = True)
                 if program.stream_set.count()
             ]
         }
@@ -370,23 +368,3 @@ class Controller:
             file.write(data)
 
 
-class Monitor:
-    """
-    Monitor multiple controllers.
-    """
-    controllers = None
-
-    def __init__(self):
-        self.controllers = {
-            controller.id : controller
-            for controller in [
-                Controller(station, True)
-                for station in programs.Station.objects.filter(active = True)
-            ]
-        }
-
-    def update(self):
-        for controller in self.controllers.values():
-            controller.update()
-
-
diff --git a/programs/admin.py b/programs/admin.py
index b625bf7..30705db 100755
--- a/programs/admin.py
+++ b/programs/admin.py
@@ -24,6 +24,8 @@ class StreamInline(admin.TabularInline):
     model = Stream
     extra = 1
 
+class SoundDiffInline(admin.TabularInline):
+    model = Diffusion.sounds.through
 
 # from suit.admin import SortableTabularInline, SortableModelAdmin
 #class TrackInline(SortableTabularInline):
@@ -45,11 +47,11 @@ class NameableAdmin(admin.ModelAdmin):
 @admin.register(Sound)
 class SoundAdmin(NameableAdmin):
     fields = None
-    list_display = ['id', 'name', 'duration', 'type', 'mtime', 'good_quality', 'removed', 'public']
+    list_display = ['id', 'name', 'duration', 'type', 'mtime', 'good_quality', 'removed']
     fieldsets = [
         (None, { 'fields': NameableAdmin.fields + ['path', 'type'] } ),
         (None, { 'fields': ['embed', 'duration', 'mtime'] }),
-        (None, { 'fields': ['removed', 'good_quality', 'public' ] } )
+        (None, { 'fields': ['removed', 'good_quality' ] } )
     ]
     readonly_fields = ('path', 'duration',)
 
@@ -59,10 +61,6 @@ class StreamAdmin(admin.ModelAdmin):
     list_display = ('id', 'program', 'delay', 'begin', 'end')
 
 
-@admin.register(Station)
-class StationAdmin(NameableAdmin):
-    fields = NameableAdmin.fields + [ 'active', 'public', 'fallback' ]
-
 @admin.register(Program)
 class ProgramAdmin(NameableAdmin):
     def schedule(self, obj):
@@ -113,8 +111,9 @@ class DiffusionAdmin(admin.ModelAdmin):
     list_editable = ('type',)
     ordering = ('-start', 'id')
 
-    fields = ['type', 'start', 'end', 'initial', 'program', 'sounds']
-    inlines = [ DiffusionInline ]
+    fields = ['type', 'start', 'end', 'initial', 'program']
+    inlines = [ DiffusionInline, SoundDiffInline ]
+    exclude = ('sounds',)
 
 
     def get_form(self, request, obj=None, **kwargs):
diff --git a/programs/models.py b/programs/models.py
index 39063c5..1ae6a10 100755
--- a/programs/models.py
+++ b/programs/models.py
@@ -141,11 +141,6 @@ class Sound(Nameable):
         default = False,
         help_text = _('sound\'s quality is okay')
     )
-    public = models.BooleanField(
-        _('public'),
-        default = False,
-        help_text = _('sound\'s is accessible through the website')
-    )
 
     def get_mtime(self):
         """
@@ -417,32 +412,6 @@ class Schedule(models.Model):
         verbose_name_plural = _('Schedules')
 
 
-class Station(Nameable):
-    """
-    A Station regroup one or more programs (stream and normal), and is the top
-    element used to generate streams outputs and configuration.
-    """
-    active = models.BooleanField(
-        _('active'),
-        default = True,
-        help_text = _('this station is active')
-    )
-    public = models.BooleanField(
-        _('public'),
-        default = True,
-        help_text = _('information are available to the public'),
-    )
-    fallback = models.FilePathField(
-        _('fallback song'),
-        match = r'(' + '|'.join(settings.AIRCOX_SOUND_FILE_EXT) \
-                                    .replace('.', r'\.') + ')$',
-        recursive = True,
-        blank = True, null = True,
-        help_text = _('use this song file if there is a problem and nothing is '
-                      'played')
-    )
-
-
 class Program(Nameable):
     """
     A Program can either be a Streamed or a Scheduled program.
@@ -456,10 +425,6 @@ class Program(Nameable):
     Renaming a Program rename the corresponding directory to matches the new
     name if it does not exists.
     """
-    station = models.ForeignKey(
-        Station,
-        verbose_name = _('station')
-    )
     active = models.BooleanField(
         _('active'),
         default = True,
@@ -621,7 +586,7 @@ class Diffusion(models.Model):
         return r
 
     @classmethod
-    def get(cl, station = None, date = None,
+    def get(cl, date = None,
              now = False, next = False, prev = False,
              queryset = None,
              **filter_args):
@@ -637,9 +602,6 @@ class Diffusion(models.Model):
         """
         #FIXME: conflicts? ( + calling functions)
         date = date_or_default(date)
-        if station:
-            filter_args['program__station'] = station
-
         if queryset is None:
             queryset = cl.objects
 
diff --git a/website/admin.py b/website/admin.py
index bcc8819..5bdfce9 100644
--- a/website/admin.py
+++ b/website/admin.py
@@ -14,7 +14,7 @@ class TrackInline(SortableTabularInline):
     sortable = 'position'
     extra = 10
 
-
+admin.site.register(models.Article, cms.PostAdmin)
 admin.site.register(models.Program, cms.RelatedPostAdmin)
 admin.site.register(models.Diffusion, cms.RelatedPostAdmin)
 
diff --git a/website/models.py b/website/models.py
index 6a28506..66a8aad 100644
--- a/website/models.py
+++ b/website/models.py
@@ -1,11 +1,38 @@
+import os
+import logging
+
+logger = logging.getLogger('aircox')
+
 from django.db import models
 from django.utils.translation import ugettext as _, ugettext_lazy
 
-from aircox.cms.models import RelatedPost, Article
+from aircox.cms.models import Post, RelatedPost
 import aircox.programs.models as programs
 
+
+class Article (Post):
+    """
+    Represent an article or a static page on the website.
+    """
+    static_page = models.BooleanField(
+        _('static page'),
+        default = False,
+    )
+    focus = models.BooleanField(
+        _('article is focus'),
+        default = False,
+    )
+
+    class Meta:
+        verbose_name = _('Article')
+        verbose_name_plural = _('Articles')
+
+
 class Program (RelatedPost):
-    url = models.URLField(_('website'), blank=True, null=True)
+    website = models.URLField(
+        _('website'),
+        blank=True, null=True
+    )
     # rss = models.URLField()
     email = models.EmailField(
         _('email'), blank=True, null=True,
@@ -20,6 +47,7 @@ class Program (RelatedPost):
         rel_to_post = True
         auto_create = True
 
+
 class Diffusion (RelatedPost):
     class Relation:
         model = programs.Diffusion
@@ -59,3 +87,52 @@ class Diffusion (RelatedPost):
         return _('rerun of %(day)s') % {
             'day': self.related.initial.start.strftime('%A %d/%m')
         }
+
+
+class Sound (RelatedPost):
+    """
+    Publication concerning sound. In order to manage access of sound
+    files in the filesystem, we use permissions -- it is up to the
+    user to work select the correct groups and permissions.
+    """
+    embed = models.TextField(
+        _('embedding code'),
+        blank=True, null=True,
+        help_text = _('HTML code used to embed a sound from an external '
+                      'plateform'),
+    )
+    """
+    Embedding code if the file has been published on an external
+    plateform.
+    """
+
+    auto_chmod = True
+    """
+    change file permission depending on the "published" attribute.
+    """
+    chmod_flags = (750, 700)
+    """
+    chmod bit flags, for (not_published, published)
+    """
+    class Relation:
+        model = programs.Sound
+        bindings = {
+            'date': 'mtime',
+        }
+        rel_to_post = True
+
+    def save(self, *args, **kwargs):
+        super().save(*args, **kwargs)
+        if self.auto_chmod and not self.related.removed and \
+                os.path.exists(self.related.path):
+            try:
+                os.chmod(self.related.path,
+                         self.chmod_flags[self.published])
+            except PermissionError as err:
+                logger.error(
+                    'cannot set permission {} to file {}: {}'.format(
+                        self.chmod_flags[self.published],
+                        self.related.path, err
+                    )
+                )
+
diff --git a/website/sections.py b/website/sections.py
index 2c4a010..4341f67 100644
--- a/website/sections.py
+++ b/website/sections.py
@@ -9,6 +9,28 @@ import aircox.cms.sections as sections
 import aircox.website.models as models
 
 
+class Player(sections.Section):
+    """
+    Display a player that is cool.
+    """
+    template_name = 'aircox/website/player.html'
+    live_streams = []
+    """
+    A ListItem objects that display a list of available streams.
+    """
+    #default_sounds
+
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+
+        context.update({
+            'live_streams': self.live_streams
+        })
+        return context
+
+
+
 class Diffusions(sections.List):
     """
     Section that print diffusions. When rendering, if there is no post yet
@@ -19,14 +41,19 @@ class Diffusions(sections.List):
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.__dict__.update(kwargs)
 
     def get_diffs(self, **filter_args):
         qs = programs.Diffusion.objects.filter(
             type = programs.Diffusion.Type.normal
         )
         if self.object:
-            qs = qs.filter(program = self.object.related)
+            object = self.object.related
+            if type(object) == programs.Program:
+                qs = qs.filter(program = object)
+            elif type(object) == programs.Diffusion:
+                if object.initial:
+                    object = object.initial
+                qs = qs.filter(initial = object) | qs.filter(pk = object.pk)
         if filter_args:
             qs = qs.filter(**filter_args).order_by('start')
 
@@ -72,6 +99,9 @@ class Diffusions(sections.List):
 
     @property
     def url(self):
+        if not self.need_url():
+            return
+
         if self.object:
             return models.Diffusion.route_url(routes.ThreadRoute,
                 pk = self.object.id,
@@ -114,6 +144,10 @@ class Playlist(sections.List):
                     for track in tracks ]
 
 
+class Sounds(sections.List):
+    pass
+
+
 class Schedule(Diffusions):
     """
     Render a list of diffusions in the form of a schedule