pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5941-10072_Absence.ps) >>/Users/jc/w/tmp/Tune-5941-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EliasHowe/MusiciansCompanionP1/10072_Absence.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_59413.log 529322 Log file, useful mostly for debugging
Coll_59415.log 264661 Log file, useful mostly for debugging
Form_59412.log 1926 Log file, useful mostly for debugging
Tune-5941-10072_Absence.abc 618 ABC music file with the extracted tune(s)
Tune-5941-10072_Absence.ps 33482 PostScript
Tune-5941-10072_Absence.txt 618 Plain-text file with the extracted tune(s)
Tune-5941-get.log 9859 Log file, useful mostly for debugging
Tune-59415-get.log 8989 Log file, useful mostly for debugging
Tune-59416-21022_Boston_Sett_tune_2.abc 920 ABC music file with the extracted tune(s)
Tune-59416-21022_Boston_Sett_tune_2.ps 36411 PostScript
Tune-59416-21022_Boston_Sett_tune_2.txt 920 Plain-text file with the extracted tune(s)
Tune-59416-get.log 4978 Log file, useful mostly for debugging
Tune-59418-get.log 5540 Log file, useful mostly for debugging
These files should be available for 24 hours.