On ipernity, you are free to arrange documents in albums! You can add photos, videos, music or any other type of document into an album. You can also add the same document to multiple albums.
Below are the different ways of creating an album to arrange your documents:
When Uploading
After selecting the file to upload, click on "Choose an album".
In the window that appears, click on "New Album"
See also: Adding my documents into an album using iperUpload
With The DocManager
Drag your documents in the workspace and then click "New album".
On a Document's page
Click on the "Add to album" icon at the top of the document. Then hit "Create new album" at the top of the list that pops up.
With All-in-One edition
Click on "albums" and select "Create a new album".
(All-in-One is accessible from your documents home page)
To create an audio or video playlist, add your documents to an album and then view the album in multimedia mode (you will find the link at the bottom of albums).
To put the documents in the right order, click on the "change order" icon above the album.

Use the DocManager
Click on "albums" and add your documents by dragging them to the album.
To remove documents, open the album and drag them into the stream at the bottom of the page.
See also Select and move my docs
With the All-in-One edition (accessed from your documents home page):
Click on "albums" and then select an album in the list to add the document to it.
Click [x] to remove it.
On a document page:
Click on the "Add to album" icon at top of the document.
By clicking on the [x] next to the name of the album, you'll remove it from that album.
The removal of a document does not delete it!
Go to the album, click on the "delete" icon and choose "This album only".
The album will be removed, but your documents will not be deleted.
There's nothing like a slide show with background music!
And nothing simpler either :)
Just add an audio file to the album and it will be played throughout the slide show. Better still, if you add multiple audio files, they will automatically play in order.