Final answer:
The shortcut for deleting a MIDI note in session mode is to select the note and press the 'Delete' key on your keyboard, although the exact shortcut may vary depending on the digital audio workstation being used.
Step-by-step explanation:
If you're asking what is the shortcut for deleting a midi note in session mode, this largely depends on the digital audio workstation (DAW) software you're using. For example, in Ableton Live, one commonly used shortcut is to click on the MIDI note with your mouse to select it and then press the 'Delete' key on your keyboard to remove it.
In other DAWs, such as Logic Pro or FL Studio, the shortcut might differ slightly. Generally, selecting the MIDI note and pressing 'Delete' or 'Backspace' will remove the note from your session. However, it's always good to refer to your software's manual or support resources for specific commands and shortcuts, as these can vary between applications and versions.