A Tony, an Emmy, a Grammy, and Oscar nominations — Cynthia Erivo can do anything with a song. Fifteen tracks showing what she does when nobody has handed her a script. The stage voice, out of the theatre Cynthia Erivo was born in London to Nigerian parents, trained at RADA, and became internationally known through the 2015 Broadway revival of The Color Purple , for which she won the Tony, the Grammy for the cast recording, and later an Emmy — leaving her one Academy Award short of the EGOT, with two Oscar nominations already logged for Harriet and subsequent work. What that résumé can obscure is that she is a genuinely distinctive recording artist. Erivo has enormous technical capacity — the range, the breath control, the ability to sustain a note past the point where most singers would need to breathe — and the interesting thing about her records is how often she declines to use it. Her best performances are the restrained one...