pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-54557-T001_to_T100.ps) >>/Users/jc/w/tmp/Tune-54557-get.log 2>&1" returned status 256
http://www.oberlin.net/~irishsession/ABC/T001_to_T100.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-54557-T001_to_T100.abc 214 ABC music file with the extracted tune(s)
Tune-54557-T001_to_T100.ps 35052 PostScript
Tune-54557-T001_to_T100.txt 214 Plain-text file with the extracted tune(s)
Tune-54557-get.log 4333 Log file, useful mostly for debugging
These files should be available for 24 hours.