need an audio app with navigation and hopefully audiobus support

Hi. I am looking for an app that can play audio files, mp3, m4a, aac and .wav. If it can only support some of the formats that is ok to. I do however need this app to support open in and be able to navigate through a file instead of just switching from one file to another. For example, I want to be able to move by time increments so if I have a 20 minute audio file and I want to listen to the last 10 minutes without listening to the first 10 minutes, I can do that. If possible, audiobus support would be nice but not a requirement. Thank you.