pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-814-Urbani_Liston_1800.ps) >>/Users/jc/w/tmp/Tune-814-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Urbani_Liston/Urbani_Liston_1800.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_81402.log 587869 Log file, useful mostly for debugging
Coll_81404.log 280679 Log file, useful mostly for debugging
Coll_81410.log 552220 Log file, useful mostly for debugging
Coll_81412.log 55814 Log file, useful mostly for debugging
Coll_81423.log 275711 Log file, useful mostly for debugging
Coll_81424.log 535375 Log file, useful mostly for debugging
Coll_81429.log 69044 Log file, useful mostly for debugging
Coll_81447.log 61754 Log file, useful mostly for debugging
Coll_81455.log 46 Log file, useful mostly for debugging
Coll_81460.log 68504 Log file, useful mostly for debugging
Coll_81461.log 275711 Log file, useful mostly for debugging
Coll_81472.log 316819 Log file, useful mostly for debugging
Coll_81473.log 286016 Log file, useful mostly for debugging
Coll_81475.log 68504 Log file, useful mostly for debugging
Coll_81493.log 62564 Log file, useful mostly for debugging
Coll_81496.log 250099 Log file, useful mostly for debugging
Coll_81499.log 339625 Log file, useful mostly for debugging
Form_8140.log 776 Log file, useful mostly for debugging
Form_81404.log 717 Log file, useful mostly for debugging
Form_81405.log 740 Log file, useful mostly for debugging
Form_81411.log 737 Log file, useful mostly for debugging
Form_81421.log 773 Log file, useful mostly for debugging
Form_81425.log 955 Log file, useful mostly for debugging
Form_81435.log 769 Log file, useful mostly for debugging
Form_81437.log 752 Log file, useful mostly for debugging
Form_81448.log 786 Log file, useful mostly for debugging
Form_81450.log 782 Log file, useful mostly for debugging
Form_81463.log 749 Log file, useful mostly for debugging
Form_81470.log 785 Log file, useful mostly for debugging
Form_81472.log 754 Log file, useful mostly for debugging
Form_81479.log 767 Log file, useful mostly for debugging
Form_81490.log 767 Log file, useful mostly for debugging
Form_81498.log 739 Log file, useful mostly for debugging
Tune-814-Urbani_Liston_1800.abc 488 ABC music file with the extracted tune(s)
Tune-814-Urbani_Liston_1800.ps 33882 PostScript
Tune-814-Urbani_Liston_1800.txt 488 Plain-text file with the extracted tune(s)
Tune-814-get.log 4329 Log file, useful mostly for debugging
Tune-8140-get.log 4035 Log file, useful mostly for debugging
Tune-81400-get.log 40237 Log file, useful mostly for debugging
Tune-81405-get.log 3813 Log file, useful mostly for debugging
Tune-81406-get.log 11405 Log file, useful mostly for debugging
Tune-81410-get.log 3216 Log file, useful mostly for debugging
Tune-81412-get.log 4464 Log file, useful mostly for debugging
Tune-81417-get.log 8333 Log file, useful mostly for debugging
Tune-81418-get.log 5284 Log file, useful mostly for debugging
Tune-81421-get.log 2964 Log file, useful mostly for debugging
Tune-81422-get.log 4079 Log file, useful mostly for debugging
Tune-81426-get.log 37252 Log file, useful mostly for debugging
Tune-81428-get.log 8554 Log file, useful mostly for debugging
Tune-81430-get.log 3401 Log file, useful mostly for debugging
Tune-81435-get.log 7177 Log file, useful mostly for debugging
Tune-81436-get.log 2810 Log file, useful mostly for debugging
Tune-81436-hnj1.abc 486 ABC music file with the extracted tune(s)
Tune-81436-hnj1.txt 486 Plain-text file with the extracted tune(s)
Tune-81439-get.log 4346 Log file, useful mostly for debugging
Tune-81441-get.log 2741 Log file, useful mostly for debugging
Tune-81443-get.log 4885 Log file, useful mostly for debugging
Tune-81448-get.log 7151 Log file, useful mostly for debugging
Tune-81449-get.log 3666 Log file, useful mostly for debugging
Tune-81451-get.log 1386 Log file, useful mostly for debugging
Tune-81454-get.log 5037 Log file, useful mostly for debugging
Tune-8146-get.log 2765 Log file, useful mostly for debugging
Tune-81460-get.log 4315 Log file, useful mostly for debugging
Tune-81463-get.log 3135 Log file, useful mostly for debugging
Tune-81465-get.log 2829 Log file, useful mostly for debugging
Tune-81470-get.log 6099 Log file, useful mostly for debugging
Tune-81471-get.log 3512 Log file, useful mostly for debugging
Tune-8148-get.log 4251 Log file, useful mostly for debugging
Tune-81480-get.log 10785 Log file, useful mostly for debugging
Tune-81482-get.log 4647 Log file, useful mostly for debugging
Tune-81485-get.log 4991 Log file, useful mostly for debugging
Tune-81488-get.log 3028 Log file, useful mostly for debugging
Tune-81491-Est.abc 0 ABC music file with the extracted tune(s)
Tune-81491-Est.txt 0 Plain-text file with the extracted tune(s)
Tune-81491-get.log 3293 Log file, useful mostly for debugging
Tune-81494-get.log 5516 Log file, useful mostly for debugging
Tune-81495-get.log 8124 Log file, useful mostly for debugging
Tune-81497-get.log 2976 Log file, useful mostly for debugging
These files should be available for 24 hours.