if(strcmp(cmd, "/sound", true) == 0)  
      {  
          if(IsPlayerConnected(playerid))  
          {  
              tmp = strtok(cmdtext, idx);  
              if(!strlen(tmp)) return SendClientMessage(playerid, 0xFF0000AA, "/sound [musicid]");  
              new muson = strval(tmp);  
              PlayerPlaySound(playerid, muson, 0.0, 0.0, 0.0);  
          }  
          return true;  
      }