Oliver Knill |
Department of Mathematics
One Oxford Street
Cambridge, MA 02138, USA
Office: 434 ( Web camera)
Tel: (617) 495 5549
As the word improvisation suggest, a theme is played without having it written
down or having memorized the music. A consequence is that it could not be played
the same way a second time. The underlying building blocks
are a set of harmony sequences, a set of rythms usually forced by the technique chosen
for the left hand, and of course - the mood.
Hard and Software: The hardware and some of the software are
horribly outdated: the piano is
a 14 year old Korg electronic piano which we carried from Zürich
Pasadena, Tucson, Austin to Boston. Consequently
the piano starts to fall apart, its keys start to get outweared. The tunes are
recorded on the Musicshop Midi sequencer (1981) on Macintosh.
Except 01-1999.mp3, which is played once over an older improvisation,
the examples are one-track recordings. Accustic
recording was done with the software "Adobe Premiere" from a small external microphone.
Most of the background noise origins from the harddrives and fans
of 6 computers humming in the same room. The microphone is
a standard input Macintosh mic. Under Linux, the aiff-to-wave conversion is done
using sox and and the wave-to-mp3 conversion was done with lame. Some tests