Loop YouTube videos, and control how long you want to play a YouTube video for.
Brain.fm - Music designed for the brain to enhance focus, relaxation, meditation, naps and sleep within 10 - 15 minutes of use.
FacePause - Look away to pause YouTube videos
Tinnire - Generative music for productive work from home
mps-youtube - Terminal based YouTube player and downloader
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
ListenOnRepeat - 24/7 curated music streams