Hello! I just recently joined this list and would like to introduce myself.
My name is Bruno H. Repp and I am an experimental psychologist interested
in music perception and performance. I have done some descriptive analyses
of expression (mainly expressive timing) in piano performances, measured
from acoustic recordings or obtained in MIDI format from a Yamaha Disclavier.
(Some references are listed below.) I don't know anything about automatic
instruments, but I am interested in any MIDI data that may become publicly
available as the result of piano roll transfers. I am interested in
historical changes in expressive style (again mainly in timing) and in
the nature and origin of individuality in (piano) performance. I would
appreciate receiving any relevant information. Thank you in advance.

Bruno H. Repp¶
Haskins Laboratories¶
270 Crown Street¶
New Haven, CT 06511-6695¶
e-mail: repp@haskins.yale.edu

Some publications:

Repp, B. H. (1990). Patterns of expressive timing in performances of a 
Beethoven minuet by nineteen famous pianists. Journal of the Acoustical 
Society of America, 88, 622-641.

Repp, B. H. (1992). Diversity and commonality in music performance: An 
analysis of timing microstructure in Schumann's "Traeumerei". Journal of the 
Acoustical Society of America, 92, 2546-2568.

Repp, B. H. (1993). Objective performance analysis as a tool for the musical 
detective. Journal of the Acoustical Society of America, 93, 1203-1204.

Repp, B. H. (1994). Relational invariance of expressive microstructure across 
global tempo changes in music performance: An exploratory study. Psychological 
Research, 56, 269-284.

Repp, B. H. (1995). Expressive timing in Schumann's Traeumerei: An analysis 
of performances by graduate student pianists. Journal of the Acoustical 
Society of America, 98, 2413-2427.