VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Dial - Quick & beautiful macOS timer.
foobar2000 - An advanced freeware audio player for the Windows platform.
Cuppa - Cuppa is a testing framework for Java.
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
wnr - Better than pomodoro, this timer app balances work and rest.