K Instruments
Software for live sound
and musicians.
I'm Long Kelvin, a developer and musician. I build the tools I want on stage and at the keyboard: a show player you can trust when the lights go down, and plugins that tell you what you're playing.
Products
From the stage to the DAW. Each one started as a tool I needed myself.
SoundDeck
A low-latency audio player for live shows: 32 trigger pads, a BGM playlist with crossfade and ducking, a theatre-style Cue List with GO, and a mixer.
Explore SoundDeck →
MIDI Chord Detector
A free VST3 plugin that names the chord you're playing in real time: 60+ chord types, inversions, voicings and a grand-staff view.
See the plugin →song-rt-scription
Real-time song transcription: play a song, and see its chords and notes as it plays.
Learn more →Running a show, or have an idea?
Questions about SoundDeck, feedback from a gig, or a collaboration: I read every message.