Back at No. 1 on the JazzWeek Jazz Chart this week (after a week at No. 1 on August 11) is Sean Jones im.pro.vise (Mack Avenue). It’s also the week’s most reported CD (59 stations). Most added (+21) is Rod McGaha The Black Flower Project (Black Flower) and the biggest gainer (+96) is Mark Elf Mark Elf Returns 2014 (Jen Bay, Inc.). The week’s top debut (No. 25) is Michael Carvin Flash Forward (Motema).