pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-744-Amazing_Grace_2-D-16-2.ps) >>/Users/jc/w/tmp/Tune-744-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/SudburyAncients/hymn/Amazing_Grace_2-D-16-2.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_74407.log 67964 Log file, useful mostly for debugging
Coll_74417.log 309869 Log file, useful mostly for debugging
Coll_74420.log 61754 Log file, useful mostly for debugging
Coll_74426.log 67424 Log file, useful mostly for debugging
Coll_74438.log 112674 Log file, useful mostly for debugging
Coll_7444.log 321963 Log file, useful mostly for debugging
Coll_74449.log 62834 Log file, useful mostly for debugging
Coll_74462.log 66884 Log file, useful mostly for debugging
Coll_74464.log 67154 Log file, useful mostly for debugging
Coll_74473.log 69584 Log file, useful mostly for debugging
Coll_74486.log 252879 Log file, useful mostly for debugging
Coll_74489.log 65804 Log file, useful mostly for debugging
Coll_74493.log 578038 Log file, useful mostly for debugging
Find_74417.log 1431 Log file, useful mostly for debugging
Find_74425.log 1407 Log file, useful mostly for debugging
Find_74444.log 1569 Log file, useful mostly for debugging
Find_74482.log 1399 Log file, useful mostly for debugging
Form_74407.log 726 Log file, useful mostly for debugging
Form_7441.log 758 Log file, useful mostly for debugging
Form_74419.log 735 Log file, useful mostly for debugging
Form_74425.log 753 Log file, useful mostly for debugging
Form_74428.log 750 Log file, useful mostly for debugging
Form_7443.log 761 Log file, useful mostly for debugging
Form_74430.log 781 Log file, useful mostly for debugging
Form_74451.log 772 Log file, useful mostly for debugging
Form_74457.log 761 Log file, useful mostly for debugging
Form_74468.log 794 Log file, useful mostly for debugging
Form_74469.log 752 Log file, useful mostly for debugging
Form_74474.log 889 Log file, useful mostly for debugging
Form_74475.log 762 Log file, useful mostly for debugging
Form_74477.log 740 Log file, useful mostly for debugging
Form_74483.log 774 Log file, useful mostly for debugging
Form_74493.log 730 Log file, useful mostly for debugging
Form_74496.log 745 Log file, useful mostly for debugging
Tune-744-Amazing_Grace_2-D-16-2.abc 343 ABC music file with the extracted tune(s)
Tune-744-Amazing_Grace_2-D-16-2.ps 32658 PostScript
Tune-744-Amazing_Grace_2-D-16-2.txt 343 Plain-text file with the extracted tune(s)
Tune-744-get.log 4567 Log file, useful mostly for debugging
Tune-74404-get.log 5100 Log file, useful mostly for debugging
Tune-74405-get.log 4591 Log file, useful mostly for debugging
Tune-74406-get.log 4096 Log file, useful mostly for debugging
Tune-74409-get.log 5230 Log file, useful mostly for debugging
Tune-74412-get.log 1407 Log file, useful mostly for debugging
Tune-74413-BL.abc 0 ABC music file with the extracted tune(s)
Tune-74413-BL.ps 6 PostScript
Tune-74413-BL.txt 0 Plain-text file with the extracted tune(s)
Tune-74413-get.log 6794 Log file, useful mostly for debugging
Tune-74415-get.log 5057 Log file, useful mostly for debugging
Tune-74416-get.log 7209 Log file, useful mostly for debugging
Tune-74421-NYE_jig_AuntMarys.abc 433 ABC music file with the extracted tune(s)
Tune-74421-NYE_jig_AuntMarys.txt 433 Plain-text file with the extracted tune(s)
Tune-74421-get.log 14388 Log file, useful mostly for debugging
Tune-74424-get.log 6974 Log file, useful mostly for debugging
Tune-74425-get.log 5785 Log file, useful mostly for debugging
Tune-74429-get.log 3046 Log file, useful mostly for debugging
Tune-7443-get.log 7426 Log file, useful mostly for debugging
Tune-74430-get.log 3432 Log file, useful mostly for debugging
Tune-74431-get.log 4885 Log file, useful mostly for debugging
Tune-74431-sydney.abc 247 ABC music file with the extracted tune(s)
Tune-74431-sydney.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-74431-sydney.ps 35135 PostScript
Tune-74431-sydney.txt 247 Plain-text file with the extracted tune(s)
Tune-74436-get.log 3110 Log file, useful mostly for debugging
Tune-74437-get.log 4810 Log file, useful mostly for debugging
Tune-74441-get.log 4212 Log file, useful mostly for debugging
Tune-74442-get.log 3075 Log file, useful mostly for debugging
Tune-74445-get.log 3528 Log file, useful mostly for debugging
Tune-74447-get.log 10503 Log file, useful mostly for debugging
Tune-74447-tunebook.abc 455 ABC music file with the extracted tune(s)
Tune-74447-tunebook.txt 455 Plain-text file with the extracted tune(s)
Tune-7445-get.log 4362 Log file, useful mostly for debugging
Tune-74451-get.log 3757 Log file, useful mostly for debugging
Tune-74454-get.log 4239 Log file, useful mostly for debugging
Tune-74455-get.log 5112 Log file, useful mostly for debugging
Tune-74456-get.log 7834 Log file, useful mostly for debugging
Tune-74459-get.log 4254 Log file, useful mostly for debugging
Tune-74460-2014-10-30SPUDsCompact.abc 635 ABC music file with the extracted tune(s)
Tune-74460-2014-10-30SPUDsCompact.malt 3890 Musical Instrument Digital Interface, alternate name for midi format
Tune-74460-2014-10-30SPUDsCompact.mid 3890 Musical Instrument Digital interface, shortened name for midi format
Tune-74460-2014-10-30SPUDsCompact.midi 3890 Musical Instrument Digital Interface, electronic version of the tune(s)
Tune-74460-2014-10-30SPUDsCompact.txt 635 Plain-text file with the extracted tune(s)
Tune-74460-get.log 3925 Log file, useful mostly for debugging
Tune-74462-get.log 3394 Log file, useful mostly for debugging
Tune-74463-get.log 5785 Log file, useful mostly for debugging
Tune-74464-get.log 5056 Log file, useful mostly for debugging
Tune-74465-get.log 7823 Log file, useful mostly for debugging
Tune-74468-get.log 8364 Log file, useful mostly for debugging
Tune-74469-get.log 2909 Log file, useful mostly for debugging
Tune-7447-get.log 3081 Log file, useful mostly for debugging
Tune-74472-b-001.svg 19398 Scalable Vector Graphics format
Tune-74472-b.abc 313 ABC music file with the extracted tune(s)
Tune-74472-b.txt 313 Plain-text file with the extracted tune(s)
Tune-74472-get.log 3742 Log file, useful mostly for debugging
Tune-74479-get.log 5156 Log file, useful mostly for debugging
Tune-74483-get.log 5133 Log file, useful mostly for debugging
Tune-74485-get.log 3423 Log file, useful mostly for debugging
Tune-74486-get.log 10251 Log file, useful mostly for debugging
Tune-74488-get.log 1407 Log file, useful mostly for debugging
Tune-74492-Aboyne_Castle_1.abc 548 ABC music file with the extracted tune(s)
Tune-74492-Aboyne_Castle_1.ps 39001 PostScript
Tune-74492-Aboyne_Castle_1.txt 548 Plain-text file with the extracted tune(s)
Tune-74492-get.log 4880 Log file, useful mostly for debugging
Tune-74493-get.log 3990 Log file, useful mostly for debugging
Tune-74494-get.log 2769 Log file, useful mostly for debugging
Tune-74496-get.log 7932 Log file, useful mostly for debugging
Tune-74497-get.log 3188 Log file, useful mostly for debugging
Tune-74498-get.log 3081 Log file, useful mostly for debugging
These files should be available for 24 hours.