March 2018 Roll Scans
To see detailed information about a roll, click on its icon in the list. Note that
the "Automatic analysis of scan" link at the bottom of most
roll entries gives a detailed, automatically generated
analysis of the scan.
Here is a spreadsheet summary of the analysis:
Red Welte Rolls
"Red rolls" are usually red-colored Welte-Mignon rolls produced by
& Sons. They invented paper
rolls for playing organs in the 1880's, and they were the first
company to record live piano performances, starting in 1904 on these
red rolls. Red rolls were produced in Germany from 1905 to 1932,
and in Poughkeepsie, New York from 1913 to 1920. New York rolls
sometimes have a cloth leader. They have 100 rows of holes at 8
holes per inch, with the width of the roll being about 12.9 inches.
Click on the roll thumbnails below to view more information about