pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-22775-0201-Blithest_Lass_That_Ever_Was_Seen-D-32-S.ps) >>/Users/jc/w/tmp/Tune-22775-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/MMM2/0201-Blithest_Lass_That_Ever_Was_Seen-D-32-S.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-22775-0201-Blithest_Lass_That_Ever_Was_Seen-D-32-S.abc 895 ABC music file with the extracted tune(s)
Tune-22775-0201-Blithest_Lass_That_Ever_Was_Seen-D-32-S.ps 38820 PostScript
Tune-22775-0201-Blithest_Lass_That_Ever_Was_Seen-D-32-S.txt 895 Plain-text file with the extracted tune(s)
Tune-22775-get.log 5638 Log file, useful mostly for debugging
These files should be available for 24 hours.