WarpMyMind

What do you guys use to loop files? iTunes? iPhone? MP3 player?

Also, how does one loop a file with an induction or wakener when you want it to just play the middle part, if there is no version without the induction/awakener available? I want to create a playlist where I can do an induction and trance for a while with the same file, maybe even different files with similar content, and then awaken. Thought?

I have an Android phone. Also a Windows computer. Either can download an app to clip audio files, which you could use to clip off the awakener in your audio file.
Then, use a similar app to stack the audio file end to end as many times as you want. Or, add the same file to a Playlist repeatedly, or use a player that has a repeat option.
Its kind of a pain figuring out which apps to use but you can do it if you look around.
Good luck

Use Audacity, a free audio editor