  This paper introduces a system that learns to sing new tunes by listening to
examples. It extracts sequencing rules from input music and uses these rules to
generate new tunes, which are sung by a vocal synthesiser. We developed a
method to represent rules for musical composition as quantum circuits. We claim
that such musical rules are quantum native: they are naturally encodable in the
amplitudes of quantum states. To evaluate a rule to generate a subsequent
event, the system builds the respective quantum circuit dynamically and
measures it. After a brief discussion about the vocal synthesis methods that we
have been experimenting with, the paper introduces our novel generative music
method through a practical example. The paper shows some experiments and
concludes with a discussion about harnessing the creative potential of the
system.
