‘Stephen Sondheim’s Old Friends’ Review: Not Just a Broadway Tribute but a Musical Feast

‘Stephen Sondheim’s Old Friends’ Review: Not Just a Broadway Tribute but a Musical Feast

Kate Jennings Grant achieves the high-jump in the linguistic hurdle of “The Boy From…” (the composer’s contribution to the Off Broadway production “The Mad Show” revue), and Peters bringing a tender fragility to “Send in the Clowns.”