...

src/main/java/kr/co/swh/lecture/opensource/project/discode/music/PlayerManager.java

 package kr.co.swh.lecture.opensource.project.discode.music; 
 
-import org.apache.log4j.Logger;
+import java.util.HashMap;
+import java.util.Map;
+
 import com.sedmelluq.discord.lavaplayer.player.AudioLoadResultHandler;
 import com.sedmelluq.discord.lavaplayer.player.AudioPlayerManager;
 import com.sedmelluq.discord.lavaplayer.player.DefaultAudioPlayerManager;
 import com.sedmelluq.discord.lavaplayer.tools.FriendlyException;
 import com.sedmelluq.discord.lavaplayer.track.AudioPlaylist;
 import com.sedmelluq.discord.lavaplayer.track.AudioTrack;
+
 import net.dv8tion.jda.api.entities.Guild;
 import net.dv8tion.jda.api.entities.TextChannel;
 
-import java.util.HashMap;
-import java.util.Map;
-
 /**
  * <pre>
  * kr.co.swh.lecture.opensource.project.discode.music 
             @Override
             public void trackLoaded(AudioTrack track) {
 //                Main.sendMessage(Main.channel, prefix + "次の音楽を再生します:" + track.getInfo());
+//            	channel.sendMessage(Main.channel, prefix + "次の音楽を再生します:" + track.getInfo());
+
                 play(musicManager,track);
             }
 

src/main/java/kr/co/swh/lecture/opensource/project/discode/music/LayoutBot.java → src/main/java/kr/co/swh/lecture/opensource/project/discode/music/YoutubeMusicBot.java

 import net.dv8tion.jda.api.JDABuilder;
 
 
-public class LayoutBot {
+public class YoutubeMusicBot {
 	
 	public void play() throws LoginException, InterruptedException {
 		// Note: It is important to register your ReadyListener before building
         JDA jda = JDABuilder.createDefault("NjYzMjgzODYxMTUyNTk1OTkz.XhGROw.Ps3JJIKlEXoE1eah_5OKHwViThY")
-            .addEventListeners(new LayoutListener())
+            .addEventListeners(new YoutubeMusicListener())
             .build();
 
         // optionally block until JDA is ready
 	}
 	public static void main(String[] args) throws LoginException, InterruptedException {
 		// TODO Auto-generated method stub
-		LayoutBot bot = new LayoutBot();
+		YoutubeMusicBot bot = new YoutubeMusicBot();
 		bot.play();
 	}
 	

src/main/java/kr/co/swh/lecture/opensource/project/discode/music/LayoutListener.java → src/main/java/kr/co/swh/lecture/opensource/project/discode/music/YoutubeMusicListener.java

 package kr.co.swh.lecture.opensource.project.discode.music;
 
-import java.awt.Color;
-import java.nio.ByteBuffer;
 import java.util.ArrayList;
 
 import kr.co.swh.lecture.opensource.project.youtube.Youtube;
 import net.dv8tion.jda.api.EmbedBuilder;
 import net.dv8tion.jda.api.Permission;
 import net.dv8tion.jda.api.entities.Message;
+import net.dv8tion.jda.api.entities.MessageEmbed;
 import net.dv8tion.jda.api.entities.TextChannel;
 import net.dv8tion.jda.api.entities.User;
 import net.dv8tion.jda.api.entities.VoiceChannel;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import net.dv8tion.jda.api.managers.AudioManager;
 
-public class LayoutListener extends ListenerAdapter{
+public class YoutubeMusicListener extends ListenerAdapter{
 
 	@Override
 	public void onGuildMessageReceived(GuildMessageReceivedEvent event) {
 
 		String message = msg.getContentRaw();
 		if(message.substring(0, 3).equals("!l ")) {
+			AudioManager audioManager = event.getGuild().getAudioManager();
+			if(!audioManager.isConnected()) {
+				VoiceChannel connectedChannel = event.getMember().getVoiceState().getChannel();
+				audioManager.openAudioConnection(connectedChannel);
+			}
 			String title = message.substring(3);
 			
 			Youtube y = new Youtube();
 			ArrayList<String> arr = y.audio(title);
 			
+			MessageEmbed embed = new EmbedBuilder()
+                    .setDescription(arr.get(0))
+                    .setTitle(title)
+                    .setFooter("swhacademy", null).build();
+        	
+			tc.sendMessage(title).queue(response -> {
+				response.editMessage(embed).queue();
+			});;
+			
 			PlayerManager Playermanager = PlayerManager.getINSTANCE();
 			Playermanager.loadAndPlay(tc, arr.get(0));
 			Playermanager.getGuildMusicManager(tc.getGuild()).player.setVolume(10);