Yokee - Karaoke to YouTube videos
ReSlice - Slice your audio with an advanced, rhythmic arpeggiator and FX.
Karaoke 5 - karaoke 5 software - Excellent Player and Creator of file Karaoke. Karaoke. Professional karaoke program. Free karaoke program.
nlog Synth - Professional Virtual Analogue Synthesizer ::: check nlogmusic at YouTube :::
UltraStar Deluxe - A free and open source karaoke game inspired by the Singstar™ game, runs on Windows, Linux and macOS.
cassini - Polyphonic Synthesizer for iPhone/iPod touch