If you were to ask the average opera-goer what their favourite opera by Johann Hasse is, the response would probably be a blank look. In many respects, Hasse is the Meyerbeer of the 18th century: hugely popular and respected in his lifetime, almost completely forgotten just a few decades afterwards, his fruitful artistic partnership with Metastasio today overlooked in favour of Gluck and Calzabigi, Mozart and Da Ponte. To hear the first British performance of his unrecorded Demetrio in modern times from Opera Settecento offered an intriguing chance to evaluate his work and consider the justice of his obscurity.
First impressions were good. The action takes place in Hellenistic Seleucia and is loosely inspired by the political turmoil surrounding the deposition of Demetrius I by Alexander Balus, a bit of a pip-squeak with a silver tongue and friends in Rome. Our eponymous hero is the son of the fallen king and, in Metastasio’s treatment, was rescued by Phenicius, brought up in a shepherd’s hut as Alceste and is eventually adopted by Phenicius, winning praise in battle under the Balus regime and the heart of Balus’ daughter, Cleonice, who after a revolt that ends in her father’s execution, is made Queen. As the work begins, Cleonice has to decide between her love for the ‘low-born’ Alceste, or Phenicius’ natural son, Olinto. And that’s largely it. Wavering, ranting, plotting and dreaming for nearly three hours, the opera has an almost claustrophobic intimacy to it which is brought to a sudden climax when the Cretans arrive on the doorstep bearing a posthumous communication from Demetrius I, confirming that his son’s name is Alceste. The implication is that everyone lives happily ever after – at least until Alceste himself was deposed and killed in the 120s BC. What’s striking is how easily Hasse is able to keep a fairly unadventurous plot musically stimulating over three hours, ably assisted by a libretto that has some sharply witty dialogue. There’s a degree of originality in the music that charms the ears; an aria for Cleonice in Act II with a heavy woodwind dynamic, while Olinto gets his own oboe obbligato in Act III.
Opera Settecento has been lucky enough to develop a strong relationship with the soprano Erica Eloff, well on her way to becoming the group’s resident diva. Eloff rarely fails to impress; here, storming onto the stage in the overture, she showed that typical vocal fire that indicates a total inhabitation of a role. If her voice was slightly underpowered in the lower register, it was more than compensated for by the security of her high notes, less sung and more fired. There was no dearth of subtlety though; Hasse’s rather lovely writing in Cleonice’s aria “Fra tanti pensieri” has a quivering, nervous fluctuation to distinguish between hope and fate that Eloff caught most sensitively.