Now this is the way I install my programs that I get from tar.gz's. This is also how I add the extra features to give me the feeling that I installed it through synaptics, and what I mean by that is that this guide not only covers how to install Songbird, but also how to add it to your menu and how to be able to run it from your command line, with just "songbird."
Step 1: Download the newest songbird available, and save it to your Desktop. You can get it from http://www.songbirdnest.com/
Step 2: Next we are going to untar the file to /opt/, that's where I put the applications that I install. Here is the command:
sudo tar -xvzf Songbird*.tar.gz -C /opt/
Step 3: This is going to change the permissions to make sure we have access to the folder where songbird is installed.
sudo chown -R username:username /opt/Songbird/
Of Course substitute username, for your actual user name. That should be the basic install of the program, but if you want to add the extra features that I was talking about at the beginning of this tutorial, then go ahead and keep on reading.
Step 4: Now we are going to add Songbird to the menu. So it can be accessed by going to Applications > Sound & Video menu.
Go ahead, and Right-Click your Menu Bar and select Edit Menus.
Once the new window opens up, on the left column (labelled Menus), click on "Sound & Video." Then on the right hand side, click on the button "New Item." The "Create Launcher" window should pop up. Fill out the information like so:
Comment: Open Source Audio Player and Web Browser
For the icon, all you have to do is click the left box, it sort of looks like a spring and type this into the address bar
Hit OK, and close out the Menu Editor window.
The next few steps are to run songbird from the command line, just by typing in songbird, just like any other application. Start off by typing this into command line:
sudo gedit /usr/bin/songbird
Add this following text to the file:
Save and close the window out, and then run this command:
sudo chmod +x /usr/bin/songbird
... and thats it, now you have Songbird fully installed on your system, Good luck! Most of thanks goes to Artifacial Intelligence, for showing me the layout to this guide, most of the credit should go to him, I just changed a few things.