– Pro Tools User Manual: https://www.pro-tools-expert.com/home-page/2018/6/19/pro-tools-user-guide-online
– Sweetwater: Looping Techniques in Pro Tools: https://www.sweetwater.com/insync/looping-techniques-in-pro-tools/
– Avid Blogs: How To Create Audio Loops In Pro Tools: https://www.avidblogs.com/how-to-create-audio-loops-in-pro-tools/