Is there a way to play music files from a specific time? (From 0:30 til the end of the track, for example.)
This isn't gonna be a the best answer but just Google MP3 cutter. I used one of the apps and they do a good job EDIT: Just select your points and hit 'Start Cut' https://play.google.com/store/apps/details?id=com.beka.tools.mp3cutter