pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90575-cresc.ps) >>/Users/jc/w/tmp/Tune-90575-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/IgnatiusSancho/MCCD/cresc.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-90575-AbrahamMackintosh.abc 154 ABC music file with the extracted tune(s)
Tune-90575-AbrahamMackintosh.pdf 2217 Portable Data Format
Tune-90575-AbrahamMackintosh.ps 6 PostScript
Tune-90575-AbrahamMackintosh.txt 154 Plain-text file with the extracted tune(s)
Tune-90575-cresc.abc 36 ABC music file with the extracted tune(s)
Tune-90575-cresc.ps 6 PostScript
Tune-90575-cresc.txt 36 Plain-text file with the extracted tune(s)
Tune-90575-get.log 13874 Log file, useful mostly for debugging
These files should be available for 24 hours.