meccanico

In Ligeti's usage, \"meccanico\" (machine-like) describes passages or entire pieces that must be played with extreme rhythmic precision, without expressive deviation of tempo — as if performed by a machine rather than a human. This aesthetic derives directly from Ligeti's encounter with Nancarrow's player-piano Studies, which are literally performed by a mechanical instrument. Many of the fast Études carry instructions like \"preciso e ritmico\" or \"sempre molto ritmico\" that imply this meccanico quality. The paradox Ligeti exploits is that music performed with machine-like rhythmic precision at very high tempos begins to produce non-mechanical perceptual effects: the beating of polyrhythmic layers creates interference patterns and auditory illusions that no machine was \"intended\" to produce.

When Ligeti's score says \"preciso,\" he means it absolutely. Do not add expressive rubato to meccanico passages. The expressive content emerges from the rhythmic precision itself — from the interference between layers, the accents, the dynamics, and the harmonic rhythm — not from flexible pulse. At slow practice tempos, this may sound dull or robotic; that is correct. The music comes alive only when the precision is maintained at tempo, at which point the polyrhythmic interactions produce their intended effect. Think of it as the opposite of Romantic practice: in Ligeti, more precision = more expression.