pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-212-Ury_Water_The.ps) >>/Users/jc/w/tmp/Tune-212-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CaledonianCountryDances/cache/Ury_Water_The.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
Coll_212.log 69584 Log file, useful mostly for debugging
Coll_21203.log 202542 Log file, useful mostly for debugging
Coll_21215.log 266779 Log file, useful mostly for debugging
Coll_21225.log 391484 Log file, useful mostly for debugging
Coll_21229.log 62564 Log file, useful mostly for debugging
Coll_21235.log 646249 Log file, useful mostly for debugging
Coll_21258.log 68774 Log file, useful mostly for debugging
Coll_21263.log 69044 Log file, useful mostly for debugging
Coll_21267.log 336793 Log file, useful mostly for debugging
Coll_21268.log 276509 Log file, useful mostly for debugging
Coll_21280.log 66884 Log file, useful mostly for debugging
Coll_21281.log 65534 Log file, useful mostly for debugging
Coll_2129.log 67964 Log file, useful mostly for debugging
Coll_21292.log 269559 Log file, useful mostly for debugging
Find_21273.log 1551 Log file, useful mostly for debugging
Form_21208.log 739 Log file, useful mostly for debugging
Form_21209.log 752 Log file, useful mostly for debugging
Form_21216.log 829 Log file, useful mostly for debugging
Form_21228.log 765 Log file, useful mostly for debugging
Form_21230.log 777 Log file, useful mostly for debugging
Form_21231.log 753 Log file, useful mostly for debugging
Form_21232.log 747 Log file, useful mostly for debugging
Form_21244.log 762 Log file, useful mostly for debugging
Form_21251.log 784 Log file, useful mostly for debugging
Form_21260.log 794 Log file, useful mostly for debugging
Form_21280.log 799 Log file, useful mostly for debugging
Form_21281.log 752 Log file, useful mostly for debugging
Form_21296.log 1494 Log file, useful mostly for debugging
Tune-212-Ury_Water_The.abc 640 ABC music file with the extracted tune(s)
Tune-212-Ury_Water_The.ps 38237 PostScript
Tune-212-Ury_Water_The.txt 640 Plain-text file with the extracted tune(s)
Tune-212-get.log 4593 Log file, useful mostly for debugging
Tune-21200-get.log 7856 Log file, useful mostly for debugging
Tune-21204-get.log 3085 Log file, useful mostly for debugging
Tune-21206-get.log 4084 Log file, useful mostly for debugging
Tune-2121-get.log 2883 Log file, useful mostly for debugging
Tune-21211-get.log 6309 Log file, useful mostly for debugging
Tune-21214-get.log 6774 Log file, useful mostly for debugging
Tune-21215-get.log 1384 Log file, useful mostly for debugging
Tune-2122-get.log 3640 Log file, useful mostly for debugging
Tune-21221-get.log 3088 Log file, useful mostly for debugging
Tune-21222-get.log 7447 Log file, useful mostly for debugging
Tune-21225-get.log 5083 Log file, useful mostly for debugging
Tune-21226-get.log 3025 Log file, useful mostly for debugging
Tune-21233-get.log 7111 Log file, useful mostly for debugging
Tune-21234-get.log 3223 Log file, useful mostly for debugging
Tune-21239-get.log 7233 Log file, useful mostly for debugging
Tune-21242-get.log 4376 Log file, useful mostly for debugging
Tune-21250-get.log 3488 Log file, useful mostly for debugging
Tune-21252-get.log 5439 Log file, useful mostly for debugging
Tune-21253-get.log 2988 Log file, useful mostly for debugging
Tune-21257-get.log 1384 Log file, useful mostly for debugging
Tune-2126-get.log 3915 Log file, useful mostly for debugging
Tune-21261-get.log 3888 Log file, useful mostly for debugging
Tune-21262-get.log 3370 Log file, useful mostly for debugging
Tune-21264-get.log 4729 Log file, useful mostly for debugging
Tune-21271-get.log 3130 Log file, useful mostly for debugging
Tune-21272-get.log 1420 Log file, useful mostly for debugging
Tune-21274-get.log 3091 Log file, useful mostly for debugging
Tune-21277-get.log 3697 Log file, useful mostly for debugging
Tune-21278-get.log 4924 Log file, useful mostly for debugging
Tune-21279-get.log 2998 Log file, useful mostly for debugging
Tune-21282-get.log 9477 Log file, useful mostly for debugging
Tune-21283-get.log 1384 Log file, useful mostly for debugging
Tune-21286-get.log 3946 Log file, useful mostly for debugging
Tune-21289-get.log 7468 Log file, useful mostly for debugging
Tune-21291-get.log 5243 Log file, useful mostly for debugging
Tune-21297-get.log 3056 Log file, useful mostly for debugging
Tune-21298-get.log 3195 Log file, useful mostly for debugging
Tune-21299-get.log 3240 Log file, useful mostly for debugging
These files should be available for 24 hours.