J74 StepLocker is a Max for Live device designed for Ableton Live that enhances sequencing and modulation by applying parameter locking to each step. This approach allows users to assign specific parameter values to individual steps within the sequencer, offering precise control over any device parameter across any track. The intuitive interface simplifies the workflow: select steps, choose parameters, set values, and lock them without complicated routing or menus.

Beyond parameter locking, StepLocker incorporates traditional step sequencer features including adjustable step counts, random step order playback, and value interpolation. Users can also randomize values, shift them up or down, mute specific locks, and easily copy or paste sections within the sequencer. These editing capabilities enable dynamic modulation patterns that can be recorded directly as automation clips in Live's Session or Arrangement views, integrating seamlessly into any production.

Supporting up to 64 sequencer steps, StepLocker offers different modulation styles such as impulse, hold, and gliding, providing varied expressive options. The device saves its state with the Ableton Live project, ensuring your settings are preserved. Compatible with Ableton Live 9 and later versions, StepLocker is an affordable tool priced at $12, designed to expand the creative potential of Live users through precise and flexible step-based modulation.