Bernadette Peters and Lea Salonga lead Broadway’s latest salute to Stephen Sondheim.

To those unfamiliar with Sondheim’s oeuvre, Old Friends offers a respectable and professional introduction to the late master’s voice, both as a peerlessly witty lyricist and as a unique compositional dramatist. What it doesn’t provide is context. The show contains vanishingly little biographical information about Sondheim’s personal or even professional life; neither, for the most part, does it place its songs in the dramatic moments they were written for.