Sayonara - Linux audio player and music library manager
Pitchcard - Pitchcard is an online platform for pitching your ideas and getting quick feedback.
Mopidy - Mopidy is an extensible music server written in Python. Mopidy plays music from local disk, Spotify, SoundCloud, Google Play Music, and more. You edit the playlist from any phone, tablet, or computer using a range of MPD and web clients.
Pitchdeck - Pitch Deck is a web-based solution to you create engaging presentations.
Untrack Me - Surf the web, free from tracking
PitchPerfect - PitchPerfect is a free guitar tuner that is developed by NCH Software. It combines automatic note detection with a user-friendly interface to provide accurate tuning for a variety of six-string instruments.