1by1 directly plays your music folders with no need to fuddle with playlists or media databases. The minimalistic user interface has everything on one single view. Ok, there will be no cover art or visualisation fireworks. Because 1by1 concentrates on the substance: your music.
Navigate to a track to play, 1by1 plays down the folder list - one by one. The list can be sorted by name, date, month or shuffled. You can reorganize tracks temporarily or arrange an internal playlist.
Full Resume play remembers track and position. Play modes: repeat track, repeat list, stop after track. Plays file types supported by the current system, usually: MP3, OGG, AAC, MP4, WAV, FLAC, OPUS.
Audio enhancer for consistent volume and powerful sound (needs Android 4.1 or newer) / Internal playlist view / M3U playlist support and export / Webstream play by direct URL in M3U playlists.
Bookmarking of tracks or lists, also with play position / Directory finder looks for the next music folder / Track coloring by month or name / File search / Sleep timer with slow fade out / Very small app size.
Permissions: Read phone state (quit on incoming call) / Wake lock (prevent from stop on screen off) / Write on SD card (track delete, playlist export) / Internet (webstreaming)