Continuous Improvisation and Trading with Impro-Visor
Robert M. Keller
Computer Science Department
Harvey Mudd College
Claremont, CA 91711 USA
keller@cs.hmc.edu
Demonstration
Impro-Visor is a free open-source program designed to
help musicians learn to improvise. Its main purpose is to
help its user become a better improviser. It can exhibit
creativity by improvising continuously on its own in a variety
of soloist styles. We demonstrate that, in principle,
Impro-Visor can continue creating indefinitely, without
repeating the same sequence of musical ideas. We also
demonstrate how Impro-Visor can alternate (“trade”)
phrases with the soloist, again continuously, as well as
recording what the soloist plays on a MIDI device. Related
aspects that can be shown are learning an improvisational
style through grammar acquisition and using “roadmaps”
as a basis for trading. The figure shows a screen shot of
Impro-Visor creating phrases in real-time and capturing the
soloist’s input in real-time from a MIDI device.
Acknowledgements
The author thanks the NSF (CNS REU #0753306), ImproVisor
co-developers, and Harvey Mudd College for their
generous support.
<references_biblio/>
References
Elliott, J. 2009. Insights in Jazz: An Inside View of Jazz
Standard Chord Progressions. http://www.dropback.co.uk/
Gillick, J.; Tang, K.; Keller, R. 2010. Machine learning of
jazz grammars. Computer Music Journal, September 2010.
Impro-Visor. 2012. http://www.impro-visor.com/
Keller, R., Toman-Yih, A., Schofield, A., and Merritt, Z.,
A creative improvisational companion based on idiomatic
harmonic bricks. Proc. 3rd ICCC 2012, Dublin.
Created by
Impro-visor
Created by
Impro-visor
Played by
Soloist
International Conference on Computational Creativity 2012 222