Antonio Caldara (1670-1736) is almost forgotten today; in his heyday he was a prolific composer whose flood of operas, oratorios, cantatas, religious music and chamber works were known and loved throughout Europe.
This work (The Concord of the Planets) is a world premiere recording of a reconstructed serenata or ''theatrical composition'' for outdoor performance, not an opera, although of similar length.
It was found and edited by Andrea Marcon, who conducts an excellent performance by the La Cetra baroque orchestra and its Basel choir.
This is really a showcase for seven international top-class soloists who will delight baroque aficionados with virtuosic arias, breathtaking cantilenas and ethereal duets.
Included are French contralto Delphine Galou, German tenor Daniel Behle and Argentinians Veronica Cangemi and Franco Fagioli (soprano and countertenor respectively).
After the glorious overture by oboes, clarion trumpets and timpani, the work falls neatly into two parts.
They start with a chorus, have another chorus in the middle and two at the end; the remainder is a series of bravura arias interlinked with recitative.
Each character gets two major chances to display their talents.
The standout performer is Fagioli (as Apollo), who sings the role written for a castrato in the mezzo-soprano range.
In So ch'io dal suolo alzai his singing is elegant with trills and embellishments so clear and sharp.
The more virtuosic aria Questo di cosi giocondo in part two shows great coloratura agility, supple timbre and accurate intonation.
Music lovers will be grateful for the 52-page booklet, which contains translations of the lyrics.
Verdict: Long-forgotten ''serenata'' impresses.
