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or double clicking an empty space in the left sidebar.  You can also right-click the left sidebar and select New Note.
Once the note is created, the line will begin blinking in the right window, indicating that it’s time for you to get writing. 
The notes will automatically save as you type, so exiting Notes won’t mean you lose progress. 
If you need to pick up where you left off on a note, you can use the search bar to find the exact note you are looking for, or scroll through the left sidebar and select the appropriate note.  With the note highlighted, click anywhere in the right window to begin editing that note, or double-click to open up a smaller window.
To remove notes, find the one you’d like to delete and highlight it.  Press the Delete key and confirm it.  You can also right-click a note and select Delete. 
     
    Notes can be shared through different outlets like LinkedIn, Facebook, Mail, and Messages.  If you’d like to share a note, click on the Share button in the top right corner and select how you’d like to send it. 
    iTunes
     
    You probably know what iTunes is; you might even use it. On a Mac it’s really not that different from a Windows computer; the main difference is that on a Windows computer music is played through the Windows Media Player by default and on a Mac, it’s played on iTunes.
     
    Keep in mind that you should use the same iTunes account on your Mac that you use on other devices because the media you buy on iTunes will show up on all of your devices. The exception is rentals—rentals are only available on the device you buy it from. So if you rent something on your Mac, don’t expect to be able to watch it on your Apple TV or iPad; this is a studio licensing issue, not an Apple one. You do, however, have the option of using AirPlay for rentals to send it to your Apple TV.
     
    Adding Music to your Library
    This section is for adding music you already own and have on the computer.  If you don’t have any music, you should probably skip ahead to the iTunes Store section first. 
At the top menu bar, click File > Add to Library.
When the window comes up, use the left bars to search for the specific song or songs that you’d like to add. 
If you already have a giant music collection that you may have carried over from an old computer, you can import entire folders all at once.
When you’ve decided what to add, click on it once to highlight it, and select the blue Open button. 
It may take some time depending on how many songs you are importing, but iTunes will show you the progress.
Once complete, click on the My Music tab again to verify that your music has been added to the iTunes collection. 
     
     
    Playlists
     

     
    The Playlists section is where you can view, edit and delete playlists you may have created.  On the left hand side you will notice that Apple has created some for you: 90’s Music, Classical Music, My Top Rated, Recently Added, Recently Played, and Top 25 Most Played.  These are pretty self-explanatory, and Apple uses a song’s built-in metadata to determine which songs will fit in those premade playlists. 
     
    At the top of the list you will also see one called Genius.  Selecting Genius will allow you to use Apple’s specially made music mixer.  It takes songs from your music collection and creates great-sounding custom playlists and mixes. 
     
    Using Genius
    If this is the first time you are using Genius, you will have to first click on the button that says Turn On Genius.

     
    Once you turn it on, there will be three steps that happen automatically.  Depending on the size of your library, this may take awhile so grab a snack.  Once it’s finished, your computer screen will greet you with a message that says Genius has been successfully turned on. 
     
    Match
    iTunes Match is great if you have a large music library but don’t have enough storage on your phone.  Signing up for Match will allow you to store your entire collection