This treasure trove of rarities dates back to Gaye’s early days of solo success in the ’60s. Thanks to sparkling arrangements and bustling momentum, the unearthed gems are reliably snappy, with several songs evoking parts of “I Heard It Through the Grapevine.” It’s a fascinating snapshot of Gaye’s sensitivity and urgency as a soul singer, and he cuts especially loose against the swaggering funk of “You Make Me Do Things (I Don’t Want to Do)” and the jumpy romantic anthem “I’m In Love With You.”