diff --git a/server/api/graphene_wagtail.py b/server/api/graphene_wagtail.py
index 4f335910..3b42571c 100644
--- a/server/api/graphene_wagtail.py
+++ b/server/api/graphene_wagtail.py
@@ -81,9 +81,10 @@ def augment_fields(raw_data):
                     logger.error('Survey {} does not exist'.format(survey_id))
             if _type == 'basic_knowledge' or _type == 'instrument':
                 _value = data['value']
-                basic_knowledge = BasicKnowledge.objects.get(pk=_value['basic_knowledge'])
+                instrument = BasicKnowledge.objects.get(pk=_value['basic_knowledge'])
                 _value.update({
-                    'slug': basic_knowledge.slug
+                    'slug': instrument.slug,
+                    'foreground': instrument.new_type.category.foreground
                 })
                 data['value'] = _value
 
diff --git a/server/books/migrations/0037_alter_contentblock_type.py b/server/books/migrations/0037_alter_contentblock_type.py
new file mode 100644
index 00000000..ca0ab12c
--- /dev/null
+++ b/server/books/migrations/0037_alter_contentblock_type.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.13 on 2022-09-15 13:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('books', '0036_alter_contentblock_contents'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='contentblock',
+            name='type',
+            field=models.CharField(choices=[('normal', 'Normal'), ('base_communication', 'Instrument Sprache & Kommunikation'), ('task', 'Auftrag'), ('instrument', 'Instrument'), ('base_society', 'Instrument Gesellschaft'), ('base_interdisciplinary', 'Überfachliches Instrument')], default='normal', max_length=100),
+        ),
+    ]
diff --git a/server/books/migrations/0038_auto_20220915_1340.py b/server/books/migrations/0038_auto_20220915_1340.py
new file mode 100644
index 00000000..3069b5e0
--- /dev/null
+++ b/server/books/migrations/0038_auto_20220915_1340.py
@@ -0,0 +1,17 @@
+# Generated by Django 3.2.13 on 2022-09-15 13:40
+
+from django.db import migrations
+
+def migrate_instruments(apps, schema_editor):
+    ContentBlock = apps.get_model('books', 'ContentBlock')
+    ContentBlock.objects.filter(type__startswith='base_').update(type='instrument')
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('books', '0037_alter_contentblock_type'),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_instruments, migrations.RunPython.noop)
+    ]
diff --git a/server/books/migrations/0039_alter_contentblock_type.py b/server/books/migrations/0039_alter_contentblock_type.py
new file mode 100644
index 00000000..db6d3135
--- /dev/null
+++ b/server/books/migrations/0039_alter_contentblock_type.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.13 on 2022-09-15 14:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('books', '0038_auto_20220915_1340'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='contentblock',
+            name='type',
+            field=models.CharField(choices=[('normal', 'Normal'), ('task', 'Auftrag'), ('instrument', 'Instrument')], default='normal', max_length=100),
+        ),
+    ]
diff --git a/server/books/models/contentblock.py b/server/books/models/contentblock.py
index 1bd999b6..bc744823 100644
--- a/server/books/models/contentblock.py
+++ b/server/books/models/contentblock.py
@@ -26,17 +26,13 @@ class ContentBlock(StrictHierarchyPage):
         verbose_name_plural = 'Inhaltsblöcke'
 
     NORMAL = 'normal'
-    BASE_COMMUNICATION = 'base_communication'
     TASK = 'task'
-    BASE_SOCIETY = 'base_society'
-    BASE_INTERDISCIPLINARY = 'base_interdisciplinary'
+    INSTRUMENT = 'instrument'
 
     TYPE_CHOICES = (
         (NORMAL, 'Normal'),
-        (BASE_COMMUNICATION, 'Instrument Sprache & Kommunikation'),
         (TASK, 'Auftrag'),
-        (BASE_SOCIETY, 'Instrument Gesellschaft'),
-        (BASE_INTERDISCIPLINARY, 'Überfachliches Instrument'),
+        (INSTRUMENT, 'Instrument'),
     )
 
     # blocks without owner are visible by default, need to be hidden for each class
diff --git a/server/books/schema/nodes/content.py b/server/books/schema/nodes/content.py
index fd02c724..cebd3b03 100644
--- a/server/books/schema/nodes/content.py
+++ b/server/books/schema/nodes/content.py
@@ -2,6 +2,8 @@ import graphene
 from graphene import relay
 from graphene_django import DjangoObjectType
 
+from basicknowledge.models import BasicKnowledge
+from basicknowledge.queries import InstrumentCategoryNode
 from books.models import ContentBlock
 from books.schema.interfaces.contentblock import ContentBlockInterface
 from books.utils import are_solutions_enabled_for
@@ -40,6 +42,7 @@ class ContentBlockNode(DjangoObjectType, HiddenAndVisibleForMixin):
     mine = graphene.Boolean()
     bookmarks = graphene.List(ContentBlockBookmarkNode)
     original_creator = graphene.Field('users.schema.PublicUserNode')
+    instrument_category = graphene.Field(InstrumentCategoryNode)
 
     class Meta:
         model = ContentBlock
@@ -80,6 +83,17 @@ class ContentBlockNode(DjangoObjectType, HiddenAndVisibleForMixin):
             content_block=self
         )
 
+    @staticmethod
+    def resolve_instrument_category(root: ContentBlock, info, **kwargs):
+        if root.type == ContentBlock.INSTRUMENT:
+            for content in root.contents.raw_data:
+                if content['type'] == 'instrument' or content['type'] == 'basic_knowledge':
+                    _id = content['value']['basic_knowledge']
+                    instrument = BasicKnowledge.objects.get(id=_id)
+                    category = instrument.new_type.category
+                    return category
+        return None
+
 
 def process_module_room_slug_block(content):
     if content['type'] == 'module_room_slug':
diff --git a/server/schema.graphql b/server/schema.graphql
index cd8c68d8..7a19e840 100644
--- a/server/schema.graphql
+++ b/server/schema.graphql
@@ -299,6 +299,7 @@ type ContentBlockNode implements Node & ContentBlockInterface {
   mine: Boolean
   bookmarks: [ContentBlockBookmarkNode]
   originalCreator: PublicUserNode
+  instrumentCategory: InstrumentCategoryNode
 }
 
 type ContentBlockNodeConnection {
@@ -511,7 +512,7 @@ type InstrumentBookmarkNode implements Node {
   instrument: InstrumentNode!
 }
 
-type InstrumentCategoryNode {
+type InstrumentCategoryNode implements Node {
   id: ID!
   name: String!
   background: String!
@@ -539,7 +540,7 @@ type InstrumentNodeEdge {
   cursor: String!
 }
 
-type InstrumentTypeNode {
+type InstrumentTypeNode implements Node {
   id: ID!
   name: String!
   category: InstrumentCategoryNode