There are couples of tools for transferring the files between iPad and computer.
iPad to PC Transfer is an outstanding one which can easily backup songs/video purchased on iPad to local computer. Besides, it not only can back up iPad music/video/podcast/iTunes U, etc. to local computer, it also allows you to add iPad playlist to iTunes library.
Download this apps for free and follow tutorial guide will show you how to transfer songs to computer after purchasing on iPad.

Easy Guide: How to transfer purchased songs from iPad to Computer?
• Step 1: Install and run the software
Free Download and launch iPad to PC transfer software, install and run it on PC. Connect iPad on computer, this application will automatically recognize the device and display iPad information on its interface.

• Step 2: Choose wanted purchased files for backup
Under the left panel, Click “Purchases” icon, all files under this item will be shown in the right list immediately. Check all files or some wanted files in the list at your demand.
Tips: All purchased songs and video from iPad are stored in “Purchases” item.

• Step 3: Export to local computer
Check the wanted files in the right file list, click "Export checked files to local" button at the toolbar on the main interface, and locate the target folder in the dialog box that appears, then start exporting.

With iPad to PC Transfer, you can control your iPad in your hands and freely transfer purchased songs/video to different computer for backup.
More information of iPad to PC Transfer
Excepting for iPad purchased files transferring, iPad to PC Transfer let you transfer Music, Movie, Photo, ePub, PDF, Audiobook, Ringtone, Contact, Podcast and TV Show from iPad to PC, but it also allows you to transfer data from PC to iPad directly.
• iPad to PC Transfer Reviews:
• Total downloads: 8695
• Downloads last week: 54
Free Download this iPad to PC Transfer, then you can transfer your favorite music and videos from iPad to PC, iPad to iPod, and iPad to iTunes.

Related Guides & Articles
• Sync audiobooks from iPad to Computer
• Transfer video from iPad to Computer
• Transfer contents from iPad to Computer

