Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/JamesOswald/CPC/16082_Annies_Scots_Measure.abc/all"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5652-all.ps) >>/Users/jc/w/tmp/Tune-5652-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JamesOswald/CPC/16082_Annies_Scots_Measure.abc/all

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_56520.log 337721 Log file, useful mostly for debugging
Coll_56521.log 261851 Log file, useful mostly for debugging
Coll_56527.log 266066 Log file, useful mostly for debugging
Find_56529.log 1463 Log file, useful mostly for debugging
Form_56524.log 843 Log file, useful mostly for debugging
Tune-5652-all.abc 178 ABC music file with the extracted tune(s)
Tune-5652-all.ps 6 PostScript
Tune-5652-all.txt 178 Plain-text file with the extracted tune(s)
Tune-5652-get.log 4103 Log file, useful mostly for debugging
Tune-56520-11072_When_the_Hollow_Drum.abc 715 ABC music file with the extracted tune(s)
Tune-56520-11072_When_the_Hollow_Drum.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-56520-11072_When_the_Hollow_Drum.ps 35092 PostScript
Tune-56520-11072_When_the_Hollow_Drum.txt 715 Plain-text file with the extracted tune(s)
Tune-56520-get.log 9407 Log file, useful mostly for debugging
Tune-56525-get.log 8900 Log file, useful mostly for debugging
Tune-56527-21102_DONALD_QUAICH.abc 567 ABC music file with the extracted tune(s)
Tune-56527-21102_DONALD_QUAICH.ps 36215 PostScript
Tune-56527-21102_DONALD_QUAICH.txt 567 Plain-text file with the extracted tune(s)
Tune-56527-get.log 4704 Log file, useful mostly for debugging
These files should be available for 24 hours.