Chromatic

Chromatic is a Linux-based application intended for the fine-tuning and calibration of musical instruments. It provides a digital interface for users to monitor pitch accuracy and adjust instrument settings to meet specific tonal requirements. The software processes audio input to provide real-time feedback, assisting musicians in achieving precise intonation during practice or maintenance sessions. It is distributed under the GPL-3.0-or-later license.

The application functions by analyzing frequency data from connected audio hardware, displaying deviations from standard pitch references. It is limited to the Linux platform and requires appropriate audio input configuration to function correctly. By offering a focused set of tools for pitch adjustment, it serves as a utility for those who need to calibrate acoustic or electronic instruments to specific standards or custom tunings.