French tenor Gilbert Duprez was the toast of early 19th-century Paris’ operatic scene, thanks to his huge vocal range and power. Here, the phenomenal American John Osborn pays moving homage to his hero with a collection of arias that shows off the sort of stuff Duprez excelled at, from acrobatic Donizetti to emotionally complex Verdi. Osborn’s honeyed voice soars over the orchestra and up to the heights with seeming ease, his quality of tone and enunciation never faltering, even in the face of utterly daunting vocal challenges set down by Rossini and Berlioz. A master class in vocal stamina.