Cumulus is a free and open-source SoundCloud player that lives in your menubar. FEATURES Unobtrusive: Music is meant to be listened to — without getting in the way of your daily tasks. Notifications: Cumulus will notify you when a new track is playing, so you always know what you're listening to. Media Keys: Cumulus supports media keys out of the box, no hassle and no extra setup required. Fast: It's also really fast, thanks to the technologies that power it.