Can I stop music on MacBook Pro with TouchBar directly?
You can choose to always show your media keys on the Touch Bar as follows:


Go to Apple > System Preferences...
Click on the Keyboard preference pane
Select the Keyboard tab
From the “Touch Bar shows” drop-down menu choose the option “F1, F2, etc. keys”
From the “Press Fn key to” drop-down menu choose the option “Show Control Strip”
Untick the box “Use F1, F2, etc. keys as standard function keys on external keyboards”


Now your Touch Bar should always show your media control keys. When you want to see the F1 - F12 keys just hold down the fn key.