New Directions in Quantum Music: Concepts for a Quantum Keyboard and the Sound of the Ising Model

We explore ideas for generating sounds and eventually music using quantum devices in the NISQ era using quantum circuits. In particular, we first consider a concept for a Qeyboard, that is, a quantum keyboard, where the real-time behaviour of expectation values using a time-evolving quantum circuit can be associated to sound features like intensity, frequency and tone. Then, we examine how these properties can be extracted from physical quantum systems, taking the Ising model as an example. This can be realized by measuring physical quantities of the quantum states of the system, e.g. the energies and the magnetization obtained via variational quantum simulation techniques.