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# Loopy Pro App

# Delay when using MIDI to trigger app functions
If using CC messages to trigger functions with the MIDI Learn feature, Loopy Pro expects a CC value 127 and value 0 message. If you are only sending a CC value 127 message, Loopy Pro will see it as a switch being held down and the MIDI Learn feature will adjust as such:

![](https://storage.crisp.chat/users/helpdesk/website/4fbec3a947887c00/ced9e2a7-d26c-4d64-b69f-af4137_1a0g7hy.png)

This will cause some delays when triggering functions in the app. You’ll need to change the trigger to On, or On/Off if you want to toggle:

![](https://storage.crisp.chat/users/helpdesk/website/8d70b65c53290000/7a4822f2-149b-4da1-83a0-984ad8_1xu17dd.png)

Or program the MC to send a CC value 127 and value 0 message together to emulate a switch press and release:

![](https://storage.crisp.chat/users/helpdesk/website/c1baa895fed64800/72f35975-858b-45b2-a04a-3732f0_1njdgnp.png)