"Falling Apart" is an original IA song. It is the third official demonstration created prior to the voicebank's official release, and features usage of the vocal library's beta version. The song is also featured on the demonstration album IA/1.0.0, which is included with the purchased DVD-ROM of the IA -ARIA ON THE PLANETES- voicebank, as well as IA/00, which features use of the final version of the library.