This is the third time in three years I've had the awful opportunity to write about mass killings at a concert or music club. As of this writing, the exact nature of the crime at ARIANA GRANDE's show in MANCHESTER, ENGLAND, is unknown—as if the murder of at least 22 strangers, for any reason, could be considered anything but terrorism. Why music? Why LE BATACLAN in 2015? Why PULSE in 2016? Why the MANCHESTER ARENA in 2017? Are the killers threatened by people expressing joy and love and freedom? Are they threatened by those who dare open their hearts in song? Are they jealous of artistic transcendence and ecstasy? Can we ask logical questions of illogical actors? Actually, yes we can. That's one of the things art does. And we can, and we will, keep singing. And playing. And listening. And dancing. And everything else that humans can do in the face of hatred and madness. RIP to all the souls lost on Tuesday night and thoughts, prayers and hugs to Ariana Grande and everyone else who was there... Another good way to respond... You can count SAUDI ARABIA among the societies that are officially hostile to music, even if its citizens aren't. ANASTASIA TSIOULCAS' reporting (for NPR MUSIC) on how TOBY KEITH ended up performing in the kingdom Saturday night is a cool and timely look into why Saudi officials and clerics have forbidden much music—especially vocal music—and why they are beginning to ease up on that prohibition. Among the reasons: Young Saudis were leaving the country to see shows, and taking $20 billion worth of business with them... What a long strange documentary: producers ERIC EISNER and ALEX BLAVATNIK on how they won the trust of both the GRATEFUL DEAD and AMAZON for their documentary LONG STRANGE TRIP, which opens theatrically on Thursday... "I can summarize the benefit of YOUTUBE to artists in a word," IRVING AZOFF tells HITS DAILY DOUBLE. "None"...  MATTHEW OGLE, the THIS IS MY JAM veteran who oversaw SPOTIFY's DISCOVER WEEKLY playlists, has jumped ship to INSTAGRAM... RIP also: GEORGE REIFF and JIMMY LAFAVE.