diff --git a/receiver/package-lock.json b/receiver/package-lock.json
new file mode 100644
index 0000000..f4fa1b6
--- /dev/null
+++ b/receiver/package-lock.json
@@ -0,0 +1,1494 @@
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+}
diff --git a/receiver/package.json b/receiver/package.json
new file mode 100644
index 0000000..c550f28
--- /dev/null
+++ b/receiver/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "scroll-link-server",
+  "version": "1.0.0",
+  "description": "",
+  "main": "app.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.16.3",
+    "fs": "0.0.1-security",
+    "http-proxy": "^1.17.0",
+    "https": "^1.0.0",
+    "osc": "^2.2.3",
+    "socket.io": "^2.1.1",
+    "socket.io-client": "^2.1.1"
+  }
+}
diff --git a/receiver/receiver.js b/receiver/receiver.js
new file mode 100644
index 0000000..24b8f83
--- /dev/null
+++ b/receiver/receiver.js
@@ -0,0 +1,169 @@
+//// socket.io client
+var socket = require('socket.io-client')('https://choir.run');
+//var socket = require('socket.io-client')('http://192.168.1.105:8080');
+
+//// osc.js configuration (UDP)
+var osc = require("osc");
+
+//// NOTE: apps cannot share port.. (pd & sc)
+
+// --> for puredata
+//       tx: 57000
+//       rx: 57001
+
+var udp_pd = new osc.UDPPort({
+  localAddress: '0.0.0.0',
+  //NOTE: '127.0.0.1' doesn't work!! for comm. between different machines
+  localPort: 57001,
+  remoteAddress: '0.0.0.0',
+  remotePort: 57000,
+  metadata: true
+});
+
+// --> for supercollider
+//       tx: 57120
+//       rx: 57121
+
+var udp_sc = new osc.UDPPort({
+  localAddress: '0.0.0.0',
+  //NOTE: '127.0.0.1' doesn't work!! for comm. between different machines
+  localPort: 57121,
+  remoteAddress: '0.0.0.0',
+  remotePort: 57120,
+  metadata: true
+});
+
+//firstly establish/prepare osc conn. - supercollider & puredata
+Promise.all([
+  new Promise(function(resolve, reject) {
+    udp_pd.on("ready", function() {
+      resolve(0);
+      console.log('udp_pd ready..');
+    });
+  }),
+  new Promise(function(resolve, reject) {
+    udp_sc.on("ready", function() {
+      resolve(0);
+      console.log('udp_sc ready..');
+    });
+  }),
+]).then(function(results) {
+
+  //
+  socket.on('connect', function() {
+    console.log("[osc-receiver] i'm connected.");
+  });
+
+  // //
+  // socket.on('sound', function(msg) {
+  //
+  //   //DEBUG
+  //   //console.log('sound :');
+  //   console.log(msg);
+  //
+  //   //// simply relaying messages to apps.
+  //
+  //   // to puredata
+  //   udp_pd.send({
+  //     address: "/sound",
+  //     args: [{
+  //       type: "f",
+  //       value: msg.id
+  //     }, {
+  //       type: "f",
+  //       value: msg.key
+  //     }]
+  //   });
+  //
+  //   // to supercollider
+  //   udp_sc.send({
+  //     address: "/sound",
+  //     args: [{
+  //       type: "f",
+  //       value: msg.id
+  //     }, {
+  //       type: "f",
+  //       value: msg.key
+  //     }]
+  //   });
+  //
+  // });
+  //
+  //
+  socket.on('pan', function(msg) {
+
+    //DEBUG
+    //console.log('pan :');
+    console.log(msg);
+
+    //// simply relaying messages to apps.
+
+    // to puredata
+    udp_pd.send({
+      address: "/pan",
+      args: [{
+        type: "f",
+        value: msg.width
+      }, {
+        type: "f",
+        value: msg.speed
+      }]
+    });
+
+    // // to supercollider
+    // udp_sc.send({
+    //   address: "/pan",
+    //   args: [{
+    //     type: "f",
+    //     value: msg.width
+    //   }, {
+    //     type: "f",
+    //     value: msg.speed
+    //   }]
+    // });
+
+  });
+
+  //
+  socket.on('disconnect', function() {
+    console.log("[osc-receiver] i'm disconnected.");
+  });
+
+});
+
+// //message handler
+// udp_sc.on("message", function(oscmsg, timetag, info) {
+//   console.log("[udp] got osc message:", oscmsg);
+//
+//   //EX)
+//   // //method [1] : just relay as a whole
+//   // io.emit('osc-msg', oscmsg); //broadcast
+//
+//   //EX)
+//   // //method [2] : each fields
+//   // io.emit('osc-address', oscmsg.address); //broadcast
+//   // io.emit('osc-type', oscmsg.type); //broadcast
+//   // io.emit('osc-args', oscmsg.args); //broadcast
+//   // io.emit('osc-value0', oscmsg.args[0].value); //broadcast
+//
+//   //just grab i need.. note!
+//   io.emit('sing-note', oscmsg.address); //broadcast
+// });
+
+//osc.js - start service
+udp_pd.open();
+udp_pd.on("ready", function() {
+  console.log(
+    "[udp] ready (udp_pd) : \n" +
+    "\tlistening on --> " + udp_pd.options.localAddress + ":" + udp_pd.options.localPort + "\n" +
+    "\tspeaking to -> " + udp_pd.options.remoteAddress + ":" + udp_pd.options.remotePort + "\n"
+  );
+});
+udp_sc.open();
+udp_sc.on("ready", function() {
+  console.log(
+    "[udp] ready (udp_sc) : \n" +
+    "\tlistening on --> " + udp_sc.options.localAddress + ":" + udp_sc.options.localPort + "\n" +
+    "\tspeaking to -> " + udp_sc.options.remoteAddress + ":" + udp_sc.options.remotePort + "\n"
+  );
+});