PCO MusicStand MIDI control is a Chrome extension developed by martijnversluis. This free add-on falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. The extension allows users to control Planning Center Online's Music Stand web version using MIDI messages. With PCO MusicStand MIDI control, you can use a NanoKontrol or automate Music Stand using Ableton Live.

The extension currently supports three types of MIDI messages: NOTE ON, CONTROL CHANGE, and PROGRAM CHANGE. For NOTE ON, users can assign a specific note to go to the previous or next slide. CONTROL CHANGE allows users to assign a specific control change (CC) number to navigate between slides or go to a specific slide by using the CC value. PROGRAM CHANGE enables users to navigate to a specific slide by using the program number.