Version: 1.2.1 || Release Date: 2014-10-09 || License: Commercial with demo ($14.99) Developer: Random Applications | App Owner: pico

Your iTunes Library on multiple drives.

TuneSpan: (OS X app) A utility that allows you to browse and span* your iTunes Library.
*span: (verb) to distribute the media files in your iTunes Library across multiple drives.

What does TuneSpan do?
TuneSpan helps you easily move the media files (Music, Movies, etc.) in your iTunes Library to multiple drives, avoiding the pitfalls of moving files manually. TuneSpan lets you browse and keep track of media in your iTunes Library on all drives, whether they're connected or not, and makes it clear to you what is and isn't currently available to play in iTunes. TuneSpan also offers sophisticated filtering options that aren't available in iTunes.

Why do I need TuneSpan?
There are several reasons you may need TuneSpan:

  • You're running out of space. You have a big iTunes Library on your internal drive and you want to move some (or all) of it to an external drive. TuneSpan helps you do this easily and seamlessly while cleaning up after itself and allowing you to always keep track of where everything is.
  • You store a lot of Movies/TV Shows in iTunes and you want to re-organize your media (i.e., move all your videos to an external drive). With TuneSpan, you can easily select a whole Media Type and move the files wherever you choose, while continually being able to see where the files are, move them around again, or restore them easily.
  • You need more space temporarily. TuneSpan offers a fast way to move gigabytes of files in your iTunes Library to free up space. Later, you can easily restore your files to their original locations while keeping your iTunes Library perfectly intact.
  • You regularly add new Music, Movies, Podcasts, etc. With TuneSpan you can easily move older media (or media you don't listen to as much) to an external drive while keeping your default iTunes Media location the same. This way, new stuff goes where it should and there's always room for more

Is there anything TuneSpan can't span
Unfortunately, TuneSpan can't span files that aren't included in the readable XML iTunes Library file. TuneSpan has no access to the following files; they are left untouched and unchanged:

Mobile Apps, Rented Movies, Ring Tones, Text-Based Books, iTunes LPs, and iTunes Extras

Also, for SD and HD versions of a video, only one at a time can be spanned (the one that's currently selected in iTunes).

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3 Opinions

@valexa true until recently, and the solution I have been using, but iTunes 10.4 has lost the ability to organize media files into folders symlinked into its library (it can follow symlinks into them to find media files, but new files will be lumped in at the root of the iTunes Media hierarchy).

@valexa TuneSpan allows you to easily pick and choose what you want to move (whole artists, a playlist, any random set of tracks, etc), as well as restore your tracks at any time. With the help of TuneSpan Helper you also can be notified when tracks will not be available in iTunes or see the status at anytime in the menubar. And it's free.

If you want to relocate the entire contents of your library, TuneSpan may not be for you and valexas solution may be useful, in that case this link also may be helpful:

can always just create a symbolic link :
ln ~/Music/iTunes/iTunes\ Music /other/drive/path/iTunes\ Music