Anthony Roth Costanzo in Glass Handel at Festival O18. (Photo by Dominic M. Mercier)

If Glass Handel were simply a one-performer concert—that’s only the beginning, but stay with me for a minute—even that would be intrepid, since it combines music by two composers, most of it pretty far from the mainstream, at seemingly opposite polarities of history and style.

As it turns out, Anthony Roth Costanzo’s solo mini-opera that mixes selections by George Frideric Handel and Philip Glass is only the tip of the iceberg. Costanzo, one of today’s star countertenors, is also an arts curator, missionary, spirit guide, and impresario. He has the zeal to bring his enthusiasm to the public, and the Rolodex to make it happen, with production partners Visionaire and Cath Brittan…

Read the entire review at Parterre Box