According to Berlioz, Spontini was – after Gluck – the greatest genius of French music to pave the way for the Romantic era. And it may well be that the little-known Olympie, premiered in 1819 and subsequently revived in 1826 under the modified title Olimpie, had a greater influence than we have hitherto imagined on the massive upheaval that was to set French opera on the path of the modern ‘grand opéra’. From start to finish, this finely polished score, with its astonishing orchestration, is full of spectacular effects that clearly look forward to Les Troyens of Berlioz.

Callas fans prefer her "live" recordings to studio outings for their extra charge of intensity, whether the singer's on the operatic stage or in concert, as she is on this disc, which is part of a series of new reissues from EMI. The first four items derive from a 1956 Radio Italiana program; the final six from her first concert in Greece after an absence of 12 years. Of course, Callas fans will want every scrap of salvaged recorded material they can find, but this will hold interest for anyone interested in the Callas phenomenon and great singing. Not that she's in prime voice here, but she never fails to thrill and enlighten.

Documenting more than a hundred years of Italian operatic music in France, Benjamin Bernheim’s new album Boulevard des Italiens. Music stretching from Spontini’s La Vestale to Mascagni’s Amica – all sung in French – receives gold-star treatment from Bernheim, a tenor ideally placed to sing this repertoire in his native language. As he explains, “The aim was really to show the history of the French language in opera houses in Paris by way of these Italian composers who brought their pieces there. With the Opéra Garnier at one end, and the Opéra-Comique at the other, the Boulevard des Italiens is where it all happened.”

Callas’s only operatic appearances in Germany were Lucia di Lammermoor, with Karajan conducting, in Berlin in 1955, and La sonnambula in Cologne in 1957, but in both 1959 and 1962 she made concert tours of the country, visiting Hamburg twice. The video recordings of her concerts in the city showcase her in a dazzling variety of Italian and French repertoire for both soprano and mezzo-soprano: three consisting Verdi roles (Lady Macbeth, Elvira from Ernani and Elisabetta from Don Carlo); Imogene from Bellini’s Il pirate; Giulia from La vestale; Chimѐne from Massenet’s Le Cid; Verdi’s most explosively dramatic aria for mezzo-soprano—Eboli’s ‘O don fatale’ from Don Carlo; Carmen’s seductive Habanera and Séguedille and, from Rossini’s La Cenerentola, Angelina’s final rondo, which magically combines modest charm and sparkling virtuosity.