diff --git a/app/__init__.py b/app/__init__.py
index 7e9cadf..074ebd6 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,14 +1,15 @@
-from flask import Flask, jsonify
+from flask import Flask, jsonify, send_from_directory
 from flask_sqlalchemy import SQLAlchemy
 from flask_restx import Api
 
 from flask_login import LoginManager, current_user
+from flask_migrate import Migrate
 
 from app.klang.config import KlangConfig
 
 db = SQLAlchemy()
 login_manager = LoginManager()
-
+migrate = Migrate()
 
 klang_config = KlangConfig()
 
@@ -31,6 +32,7 @@ def create_app(env=None):
 
     register_routes(api, app)
     db.init_app(app)
+    migrate.init_app(app, db)
     login_manager.init_app(app)
 
     from .auth import auth as auth_blueprint
@@ -41,4 +43,9 @@ def create_app(env=None):
     def health():
         return jsonify("healthy")
 
+    ## server for public assets
+    @app.route('/public/<path:path>')
+    def public(path):
+        return send_from_directory('public', path)
+
     return app
diff --git a/app/klang/controller.py b/app/klang/controller.py
index 3af3f9c..29db59e 100644
--- a/app/klang/controller.py
+++ b/app/klang/controller.py
@@ -1,19 +1,26 @@
 from datetime import datetime
 from typing import List
 
-from flask import session
+from flask import session, request, abort
 from flask_accepts.decorators.decorators import responds
-from flask_restx import Namespace, Resource
+from flask_restx import Namespace, Resource, reqparse
+from flask import request, current_app
 
 from .service import ConllService
+from flask_login import current_user, login_required
+import requests
 
 api = Namespace("Klang", description="Single namespace, single entity")  # noqa
 
+
 @api.route("/conlls")
 class ConllServiceResource(Resource):
     "ConllService"
 
-    def get(self) :
+    def get(self):
+        # check if the user is logged in
+        if not current_user.is_authenticated:  
+            return current_app.login_manager.unauthorized()
         return ConllService.get_all()
 
 
@@ -22,11 +29,32 @@ class ConllNameServiceResource(Resource):
     "ConllService"
 
     def get(self, conll_name):
-        
+        # check if the user is logged in
+        if not current_user.is_authenticated:  
+            return current_app.login_manager.unauthorized()
         conll_string = ConllService.get_by_name(conll_name)
         sentences_string = ConllService.seperate_conll_sentences(conll_string)
         sentences_audio_token = []
+        is_admin = request.args.get('is_admin')
+        users = ConllService.get_users_list(is_admin)
+        response = {}
+
         for sentence_string in sentences_string:
-          audio_tokens = ConllService.sentence_to_audio_tokens(sentence_string)
-          sentences_audio_token.append(audio_tokens)
-        return sentences_audio_token
\ No newline at end of file
+            audio_tokens = ConllService.sentence_to_audio_tokens(
+                sentence_string)
+            sentences_audio_token.append(audio_tokens)
+        response['original'] = sentences_audio_token
+        for user in users:
+            transcription = ConllService.get_transcription(
+                user, conll_name,  sentences_audio_token)
+            response[user] = transcription
+        
+        return response
+
+    def post(self, conll_name):
+        data = request.get_json()
+        transcription = data['transcription']
+        if not transcription:
+            abort(400)
+        ConllService.save_transcription(conll_name, transcription)
+        return {'transcription': transcription}
\ No newline at end of file
diff --git a/app/klang/data_test/John_Doe/John_Doe.intervals.conll b/app/klang/data_test/John_Doe/John_Doe.intervals.conll
deleted file mode 100644
index b56309e..0000000
--- a/app/klang/data_test/John_Doe/John_Doe.intervals.conll
+++ /dev/null
@@ -1,5 +0,0 @@
-# sent_id = John_Doe.intervals.conll__1
-# text = it is
-# sound_url = John_Doe.wav
-1	it	it	_	_	_	_	_	_	AlignBegin=100|AlignEnd=500
-2	is	is	_	_	_	_	_	_	AlignBegin=600|AlignEnd=1000
diff --git a/app/klang/model.py b/app/klang/model.py
new file mode 100644
index 0000000..e106d75
--- /dev/null
+++ b/app/klang/model.py
@@ -0,0 +1,16 @@
+from sqlalchemy import BLOB, Boolean, Column, Integer, String, Boolean, TEXT
+from sqlalchemy.ext.declarative import DeclarativeMeta
+from sqlalchemy_utils import ChoiceType
+
+from app import db  # noqa
+
+class Transcription(db.Model):
+    __tablename__ = "Klang"
+    # id = models.AutoField(primary_key = True)
+    # user = models.CharField(max_length = 100)
+    # mp3 = models.CharField(max_length = 100)
+    # transcription = models.TextField()
+    id = Column(Integer, primary_key=True)
+    user = Column(String(100), unique=True, nullable=False)
+    mp3 = Column(String(100), unique=True, nullable=False)
+    transcription = Column(TEXT)
diff --git a/app/klang/service.py b/app/klang/service.py
index db26a92..f9581bc 100644
--- a/app/klang/service.py
+++ b/app/klang/service.py
@@ -1,8 +1,15 @@
 import os
 import re
 from typing import List
+from sqlalchemy import exc
+import sys
+import json
+from flask import abort
 
-from app import klang_config
+from app import klang_config, db
+from .model import Transcription
+from app.user.model import User
+from flask_login import current_user
 
 align_begin_and_end_regex = re.compile(
     r"^\d+\t(.+?)\t.*AlignBegin=(\d+).*AlignEnd=(\d+)"
@@ -46,22 +53,15 @@ def seperate_conll_sentences(conll_string: str) -> List[str]:
 
     @staticmethod
     def sentence_to_audio_tokens(sentence_string: str):
-        # audio_tokens = {}
         audio_tokens = []
         for line in sentence_string.split("\n"):
             if line:
                 if not line.startswith("#"):
                     m = align_begin_and_end_regex.search(line)
-                    # audio_token = {
-                    #     "token": m.group(1),
-                    #     "alignBegin": int(m.group(2)),
-                    #     "alignEnd": int(m.group(3)),
-                    # }
                     audio_token = [m.group(1), m.group(2), m.group(3)]
                     audio_tokens.append(audio_token)
-                    # audio_tokens[int(line.split("\t")[0])] = audio_token
 
-        print(audio_tokens)
+        
         return audio_tokens
 
     @staticmethod
@@ -73,3 +73,49 @@ def process_sentences_audio_token(conll_name: str):
           audio_tokens = ConllService.sentence_to_audio_tokens(sentence_string)
           sentences_audio_token.append(audio_tokens)
         return sentences_audio_token
+
+    @staticmethod
+    def get_transcription(user_name, conll_name, original_trans):
+        trans = []
+        try:
+            record = Transcription.query.filter_by(
+                    user = user_name, 
+                    mp3 = conll_name).one()
+            trans = json.loads(record.transcription)
+            pass
+        except exc.SQLAlchemyError:
+            for line in original_trans:
+                trans.append([word[0] for word in line])
+            pass
+        return trans
+
+    @staticmethod
+    def get_users_list(is_admin):
+        users = []
+        if is_admin == 'true':
+            users = [x.username for x in User.query.all()]
+        else:
+            users = [current_user.username]
+        return users
+    
+    @staticmethod
+    def save_transcription(conll_name, transcription):
+        user_name = current_user.username
+        try:
+            Transcription.query.filter_by(
+                user = user_name, 
+                mp3 = conll_name
+            ).delete(synchronize_session = False)
+            trans_str = json.dumps(transcription)
+            print(transcription)
+            record = Transcription(
+                user = user_name, 
+                mp3 = conll_name, 
+                transcription = trans_str)
+            db.session.add(record)
+            db.session.commit()
+            pass
+        except:
+            print(sys.exc_info()[0])
+            abort(400)
+            pass
diff --git a/app/public/corpussamples/Thalia_Guevara_Puzma/Thalia_Guevara_Puzma.mp3 b/app/public/corpussamples/Thalia_Guevara_Puzma/Thalia_Guevara_Puzma.mp3
new file mode 100644
index 0000000..b2802f4
Binary files /dev/null and b/app/public/corpussamples/Thalia_Guevara_Puzma/Thalia_Guevara_Puzma.mp3 differ
diff --git a/app/public/corpussamples/Veronique_Jezewski/Veronique_Jezewski.mp3 b/app/public/corpussamples/Veronique_Jezewski/Veronique_Jezewski.mp3
new file mode 100644
index 0000000..35ec8d8
Binary files /dev/null and b/app/public/corpussamples/Veronique_Jezewski/Veronique_Jezewski.mp3 differ
diff --git a/app/public/corpussamples/Zaynab_Affes/Zaynab_Affes.mp3 b/app/public/corpussamples/Zaynab_Affes/Zaynab_Affes.mp3
new file mode 100644
index 0000000..0ad29a4
Binary files /dev/null and b/app/public/corpussamples/Zaynab_Affes/Zaynab_Affes.mp3 differ
diff --git a/app/public/corpussamples/Zoe_Sacotte/Zoe_Sacotte.mp3 b/app/public/corpussamples/Zoe_Sacotte/Zoe_Sacotte.mp3
new file mode 100644
index 0000000..04d7ba2
Binary files /dev/null and b/app/public/corpussamples/Zoe_Sacotte/Zoe_Sacotte.mp3 differ
diff --git a/app/public/enregistrement_sonore_Richard_Matthieu.mp3 b/app/public/enregistrement_sonore_Richard_Matthieu.mp3
new file mode 100644
index 0000000..5bbd2f1
Binary files /dev/null and b/app/public/enregistrement_sonore_Richard_Matthieu.mp3 differ
diff --git a/app/public/favicon.ico b/app/public/favicon.ico
new file mode 100644
index 0000000..7ace6d1
Binary files /dev/null and b/app/public/favicon.ico differ
diff --git a/app/public/icons/favicon-128x128.png b/app/public/icons/favicon-128x128.png
new file mode 100644
index 0000000..2d6e88c
Binary files /dev/null and b/app/public/icons/favicon-128x128.png differ
diff --git a/app/public/icons/favicon-16x16.png b/app/public/icons/favicon-16x16.png
new file mode 100644
index 0000000..436be16
Binary files /dev/null and b/app/public/icons/favicon-16x16.png differ
diff --git a/app/public/icons/favicon-32x32.png b/app/public/icons/favicon-32x32.png
new file mode 100644
index 0000000..b605ace
Binary files /dev/null and b/app/public/icons/favicon-32x32.png differ
diff --git a/app/public/icons/favicon-96x96.png b/app/public/icons/favicon-96x96.png
new file mode 100644
index 0000000..3a50144
Binary files /dev/null and b/app/public/icons/favicon-96x96.png differ
diff --git a/manage.py b/manage.py
index b0d7722..94e1640 100644
--- a/manage.py
+++ b/manage.py
@@ -4,8 +4,10 @@
 from app import create_app, db
 from commands.seed_command import SeedCommand
 
+
 from dotenv import load_dotenv
 load_dotenv(dotenv_path=".flaskenv", verbose=True)
+from sqlalchemy import MetaData, Table, Column, Integer, String
 
 env = os.getenv("FLASK_ENV") or "test"
 print(f"Active environment: * {env} *")
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 0000000..f8ed480
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,45 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 0000000..7645255
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,97 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from flask import current_app
+print(current_app.extensions['migrate'])
+config.set_main_option(
+    'sqlalchemy.url',
+    str(current_app.extensions['migrate'].db.engine.url).replace('%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 0000000..2c01563
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/7d9505c0a5d1_.py b/migrations/versions/7d9505c0a5d1_.py
new file mode 100644
index 0000000..7033efb
--- /dev/null
+++ b/migrations/versions/7d9505c0a5d1_.py
@@ -0,0 +1,43 @@
+"""empty message
+
+Revision ID: 7d9505c0a5d1
+Revises: 
+Create Date: 2020-11-13 18:30:03.579354
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '7d9505c0a5d1'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('Klang',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user', sa.String(length=100), nullable=False),
+    sa.Column('mp3', sa.String(length=100), nullable=False),
+    sa.Column('transcription', sa.TEXT(), nullable=True),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('mp3'),
+    sa.UniqueConstraint('user')
+    )
+    op.drop_table('widget')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('widget',
+    sa.Column('widget_id', sa.INTEGER(), nullable=False),
+    sa.Column('name', sa.VARCHAR(length=255), nullable=True),
+    sa.Column('purpose', sa.VARCHAR(length=255), nullable=True),
+    sa.PrimaryKeyConstraint('widget_id')
+    )
+    op.drop_table('Klang')
+    # ### end Alembic commands ###