Westernized Hungarian-Gypsy music (or the so-called style hongrois) has invariably been described as exotic. Although such a characterization is appropriate for later nineteenth-century compositions, I argue that it is inadequate for many of the earliest Viennese adaptations of Hungarian-Gypsy music. I focus in particular on representative examples from the sphere of Hausmusik, in which early adaptations were most numerous, yet which has received the least scholarly attention. Although these adaptations evoke a foreign place and foreign people through their descriptive titles, they are not, in most instances, exotic in style.

‘Meta-operas’, that is, operas portraying the world of opera and its protagonists (such as impresarios, music directors, librettists and virtuosi), became increasingly common during the eighteenth century. Most of the scholarly literature on meta-opera, however, concentrates on the operas' poetic texts, their librettos. Scholars have dealt with these operas about operas almost as though they were spoken dramas, without taking into account the many ways in which metatheatrical practices and conventions are made more complex by the presence of music.

What do meta-operatic scores look like? Are they similar to other ‘ordinary’ scores of the same time, or do their metatheatrical techniques set them aside as special? Considering a number of eighteenth-century works, this article points out how specific musical means can contribute to the overall effect of meta-operatic plots: the stratified nature of meta-narratives is, in fact, mirrored in the scores when realistic music is performed on stage. On these occasions, the presence of more than one layer of musical performance (of music and ‘music’) can be detected in the score. Furthermore, the presence of realistic music allows for a highly flexible treatment of standard operatic practices, and a number of passages work across conventional oppositions such as recitative/closed number, ‘real-life’/‘performed’ and ‘spoken’/‘sung’. Meta-operas, therefore, offer a special perspective on the presence of realistic music in opera.

Haydn's first visit to England in 1791 was accompanied by a publicity war waged between his supporters and detractors. The composer's friends were keen to present him as a musical genius while at the same time defending him against what they saw as reactionary criticisms over rules and taste. One such defence was in the form of a portrait by Thomas Hardy, probably the most famous image of the composer. While readily considered today as a matter-of-fact representation of an urbane Georgian gentleman, the portrait is in fact a sophisticated response to contemporary arguments surrounding Haydn, and presents him as an inventive genius of taste and judgment. By the manipulation of portrait conventions, Hardy created a visual representation of the composer analogous to written accounts by supporters such as Charles Burney. Haydn is shown as a man confident in his contribution to musical posterity, and the image reinforces advice from the time that repeated listening to and study of his music was required properly to appreciate it. The portrait has lost its original force as conceptions of genius changed from the early nineteenth century, reflecting a shift in the aesthetics of both music and visual art.

Among the operas on which Mozart and Da Ponte collaborated, Così fan tutte is a special case. In some ways, the libretto is more conventional than those provided for Le nozze di Figaro or Don Giovanni, and Mozart was not the first composer asked to set it. To understand the work best, it is necessary to read the text closely. This article concentrates on a few, highly significant characteristics – in particular, the locations in which the opera takes place. Such details provide the foundations for surprising insights into the opera. First, the libretto deals with central issues in eighteenth-century aesthetics, but the mechanist philosophy that informs the plot (reminiscent of that theorized by Julien Offray de La Mettrie in L'Homme machine) defuses these issues over the course of the action. Secondly, the music that turns the libretto into an opera resonates with specialist issues of eighteenth-century music aesthetics, often to turn them, once again, on their heads. In the last analysis, Così fan tutte is an opera in which both text and music question truth and reliability, and the consequences are serious for the opera, for music and for the very Enlightenment itself.