All Songs Considered's Bob Boilen shares gorgeous new music from the Ghana-born artist Okaidja Afroso, a spare reflection from the singer Samia, the 20th anniversary edition of the Sigur Rós album ( ) and more.1. Okaidja Afroso: "Gidi Gidi," from Jaku Mumor2. Lydia Ramsey: "Revival," from Like A Dream3. Samia: "Kill Her Freak Out" (Single)4. JFDR: "The Orchid" (Single)5. Sigur Rós: "Untitled #7 (Jacobs Studio Sessions)," from ( ) Remastered