Gustavus Waltz was a bass opera

Opera

Opera is an art form in which singers and musicians perform a dramatic work combining text and musical score, usually in a theatrical setting. Opera incorporates many of the elements of spoken theatre, such as acting, scenery, and costumes and sometimes includes dance...

 singer who collaborated with Handel

George Frideric Handel

George Frideric Handel was a German-British Baroque composer, famous for his operas, oratorios, anthems and organ concertos. Handel was born in 1685, in a family indifferent to music...

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Like Handel himself, Waltz was a naturalized Englishman, originally German, and is said to have worked for Handel as a cook. Their collaboration began in 1732. Waltz was a choral singer as well as a soloist.

Waltz created roles in Arianna in Creta

Arianna in Creta

Arianna in Creta is an opera seria in three acts by George Frideric Handel. The Italian-language libretto was adapted by Francis Colman from Pietro Pariati's Arianna e Teseo, a text previously set by Nicola Porpora in 1727 and Leonardo Leo in 1729.-Performance history:The opera was first given at...

, Ariodante

Ariodante

Ariodante is an opera seria in three acts by Handel. The anonymous Italian libretto was based on a work by Antonio Salvi, which in turn was adapted from Canti 5 and 6 of Ludovico Ariosto's Orlando Furioso...

, Alcina

Alcina

Alcina is an opera seria by George Frideric Handel. Handel used the libretto of L'isola di Alcina, an opera that was set in 1728 in Rome by Riccardo Broschi, which he acquired the year after, during his travels in Italy...

 and Atalanta

Atalanta (opera)

Atalanta is an opera in three acts by George Frideric Handel composed in 1736. It is based upon the mythological female athlete, Atalanta, the libretto being derived from the book La Caccia in Etolia by Belisario Valeriani...

. He sang in the chorus for the last time in a 1754 performance of (The Messiah Foundling Hospital

Foundling Hospital

The Foundling Hospital in London, England was founded in 1741 by the philanthropic sea captain Thomas Coram. It was a children's home established for the "education and maintenance of exposed and deserted young children." The word "hospital" was used in a more general sense than it is today, simply...

).