How to keep my playlist save on my galaxy s3? Iphone 4 dont have such a problem why?

Hi,

As with much to do with the iPhone, there's a bit of a trick to getting this working smoothly so you can have control over your iPhone music, while keeping it as darn easy to work with as possible. The answer? Create a custom playlist for your iPhone music library.
Let me show you how to do it - it's pretty darn easy.
Pop into iTunes and choose File --> New Playlist. Now rename it to something logical: I use "iPhone Sync":


Now you can just drag and drop music from your iTunes library (in iTunes, needless to say) into this new playlist. When you're ready, you'll see a bunch of music happily ensconced in the playlist (remember, it's all just "pointers": the actual music files are still safely in the main music library, so if you delete something from a playlist , you haven't deleted the original music file itself):

At the bottom of the iTunes window it shows you how many songs are in the playlist, along with the size and total playing time.
At this point, you need to plug in your iPhone if you haven't already done so. It'll pop up the usual summary screen:

Now click on the "Music" tab and you'll see that you can select "sync playlist". Do that, then select the new iPhone sync playlist you've created

Set things up and that's all there is to it. Now click "Sync" in iTunes and it'll synchronize your playlist with the iPhone music library and next time you click on that ole' "iPod" button on the iPhone, your selections from you music library will be present.
Oh, and one really nice feature of creating this playlist is that you can manage it, adding and deleting songs to your heart's desire, even without your iPhone present. Whatever changes you make are instantly applied to your iPhone music library the very next time you synchronize the device. Suddenly even 8GB might feel small. :-)

Regards

Please Follow the steps

Step 1: Launch iTunes and plug in your iPhone.

Step 2: Create a new "playlist" in iTunes. Name it whatever you want-say, "My iPhone Playlist" or something like that.

Step 3: Drag the songs you want from your iTunes library to your new playlist-in this case, "My iPhone Playlist"

Step 4: Click on your iPhone and go to the Music tab. "Sync Music" should already be checked. Now click on the button "Selected playlists", then tick off "My iPhone Playlist" (or whatever your playlist is named).

Step 5. Sync your iPhone and when it's done, the songs from "My iPhone Playlist" should now be on your iPhone. If you want to make any changes to your mp3 library on your iPhone, you'll have to modify the songs within your playlist, then re-sync again. Yes, I know it can be a pain.

The easiest way is to open iTunes on your computer, and delete the song from iTunes.

Next, sync your phone. This will remove the song from your phone

If you want to delete music from iPhone, you can take fully advantage of iTunes. After you purchased songs in iTunes Store on iPhone, your iTunes will also save the purchase history, so you don't have to worry about losing the purchased music files. When you connect iPhone to computer with USB cable, iTunes will launch automatically and recognize your iPhone. You can create a new playlist which contains only the music you need, and then sync it to your iPhone. By doing this, you can remove the unwanted music from iPhone.

1. Click the iPhone icon at the upper left corner.
2. Choose Music in the left sidebar.
3. Check Sync Music choose Selected playlists, artists, albums and genres.
4. Select the playlist which only contains the songs you need. Then click Sync.

http://www.leawo.org/tutorial/how-to-delete-multiple-songs-from-iphone.html

1. Download iTunes.
2. Connect your iPhone to the computer.
3. On iTunes, you should see your iPhone listed under Devices.
4. Click on your iPhone.
5. Go to the Music, Applications, TV Shows, and all those other tabs and set your preferences.
6. Click Sync.
Now you can send music from iTunes to iPhone.

If you didn't have the songs on the iPad before you updated but you purchased it, there is a
feature enabled by default that shows all music. to turn it off go to settings/music/show all
music-off. Otherwise, to delete music, swipe from right to left over what you want to delete.

How to Delete Songs from iPhone
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You need to create a playlist for the iPhone. This isn't intuitive and I don't know why it's this way. It works great, there just isn't anything explaining what to do. This seems to snag Windows users the most. Maybe Mac users are already used to doing things this way? I don't know.

Below is a picture of my iTunes. Look down in the lower-left corner and see that my playlist is highlighted. At the very bottom-left corner you can click the plus sign to create a new playlist. Then drag all of the music you want to the playlist. Finally, in the music tab of your iPhone, make sure you click the playlist you just made to sync all music on that list to your phone.

This will do the trick.