Marie-Dominique-Joseph Engramelle's treatise La tonotechnie, ou l'art de noter les cylindres (1775) claimed that automated instruments driven by pinned cylinders would grant listeners direct access to music as the composer conceived it. Standard notation was insufficient, as it did not capture the music's mouvement – its temporal flexibility from moment to moment. Denis Diderot provided an aesthetic justification for automated instruments in terms that linked them to materialist philosophy. Like android automata, which simulated life through automated motion, automated musical instruments encoded live music to simulate the ideal performance of a composer. Yet Engramelle's collaboration with the composer Claude Balbastre, which resulted in a pinned-cylinder notage of one of Balbastre's keyboard pieces, raises crucial questions about the effectiveness of the technology and its notation, and about Engramelle's claims and his own musical skill. Engramelle's project is best understood as a performance unto itself – a manifestation of the cultures of public science that were widespread in the European Enlightenment.

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Since the late twentieth century, the development of cybernetics, physical computing and robotics has led artists and researchers to create musical systems that explore the relationship between human bodies and mechanical systems. Anthropomorphic musical robots and bodily integrated ‘cyborg’ sensor interfaces explore complementary manifestations of what we call the ‘anthropomorphic analogy’, which probes the boundary between human artificer and artificial machine, encouraging listeners and viewers to humanise non-musical machines and understand the human body itself as a mechanical instrument.These new approaches to the anthropomorphic analogy benefit from historical contextualisation. At numerous points in the history of Western art music, philosophers, critics, composers, performers and instrument designers have considered the relationship between human musician and musical instrument, often blurring the line between the two. Consideration of historical examples enriches understandings of anthropomorphism in contemporary music technology.This article juxtaposes the anthropomorphic analogy in contemporary musical culture with manifestations of anthropomorphism in early seventeenth-century Europe. The first half of the seventeenth century witnessed a flourishing of instrumentality of all sorts. Musical instruments were linked with the telescope, the clock, the barometer, the paintbrush, and many other instruments and machines, and these came to be understood as vehicles for the creation of knowledge. This flourishing of instrumental culture created new opportunities for contemplation and aesthetic wonder, as theorists considered the line between human being and machine – between nature and artifice. Manifestations of the anthropomorphic analogy in seventeenth-century conceptions of musical instruments help to contextualise and explain similar articulations of the anthropomorphic analogy in the present day.

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It is well known that the instrumentation of eighteenth-century chamber music was highly flexible; composers frequently adapted their own works for a variety of instruments, and players often used whatever combinations they had available. One type of arrangement little used today but attested to in both verbal description and musical manuscripts of the period is that of trios and other chamber works adapted for two keyboard instruments. Players often executed such keyboard-duo arrangements on instruments with different mechanisms and timbres – for example, harpsichord and piano together – thus capturing something of the variety of timbres available in a mixed chamber ensemble.Keyboard duos were often played by members of a single family, or by teachers and students together, a practice that allowed for the construction of a sense of ‘sympathy’ – mutual understanding through shared experience and sentiment – between the players. These players shared common physical gestures at the instruments, which reinforced the emotional content of the music; this fostered the formation of a sympathetic connection even as players retained their individual identities.