VOICEBOX:Opera in Concert announced their 2018/19 season last night.  There are three main stage shows.  Two of them, alas, I can’t muster much enthusiasm for; Massenet’s Werther (November 25th 2018) and Schubert’s Fierabras (February 3rd 2019).  The first features Goethe’s version of Fotherington-Thomas and the latter is one of the most confused and implausible messes ever to “grace” an opera stage.  I’m much more up for the third show; Weill’s The Rise and Fall of the City of Mahagonny (March 30th/31st 2019). No details on casting or anything else but I assume the first two will be piano score and the last a chamber ensemble.  There are also two shows at Gallery 345; Little Mahagonny: a Tribute to Weill (September 25th 2018) and Viva Verdi (April 3rd 2019).