The death over the weekend of legendary record man Seymour Stein has unleashed a torrent of heartfelt appreciations from the musicians he championed.

There’s a refreshing optimism to Chris Frantz’s new memoir “Remain in Love,” a positivity that beams through its pages as the drummer recounts, with some amazement, career highlights like touring with the Ramones, befriending the B-52’s and playing thrilling concerts with the big-band version of Talking Heads,