k2k audio k2k is a node-based spectral audio explorer and polyrhythmic sequencer in one application.
Editor mode — load audio, build processing chains with a visual node graph, and see the results through four scopes: waveform, spectrum, spectrogram, and 3D spectral terrain. Eighteen color modes act as different lenses on the same sound — amplitude, harmonics, transients, phase behavior, formants, and more. What you see, you can extract with nodes, process, morph, and recombine.
Player mode — an 8-track polyrhythmic sequencer where every track runs independently. Different pattern lengths, different time divisions, per-substep parameter control, Euclidean pattern generation. Sounds processed in the Editor flow into the Player’s sample bank.
The two modes connect through a shared workflow: dissect and transform audio in the Editor, perform and compose with it in the Player.
k2k runs standalone on Linux, macOS, and Windows, with a VST bridge for DAW integration (8 audio tracks, bidirectional MIDI/OSC).
Status: Late alpha. Available to Patreon supporters.