R&B is one of the most dynamic, adventurous sounds in modern music, a place where art both personal and provocative meets the mainstream. From the alt vanguard to modern vets, straightforward to left-field, these tracks capture where R&B is now and point the way to where it’s going. This week, Leon Thomas’ “MUTT” is at the top of the playlist. The sultry and atmospheric track—which is not about a dog—finds the singer-songwriter conflicted about falling in love and his reluctance to let his guard down. We update this playlist regularly. If you like a track, add it to your library.