pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1788-2017_Gordon_Castle.ps) >>/Users/jc/w/tmp/Tune-1788-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kerr/MM2/2017_Gordon_Castle.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_17883.log 819 Log file, useful mostly for debugging
Form_17889.log 981 Log file, useful mostly for debugging
Tune-1788-2017_Gordon_Castle.abc 486 ABC music file with the extracted tune(s)
Tune-1788-2017_Gordon_Castle.ps 35654 PostScript
Tune-1788-2017_Gordon_Castle.txt 486 Plain-text file with the extracted tune(s)
Tune-1788-get.log 4660 Log file, useful mostly for debugging
Tune-17881-get.log 3157 Log file, useful mostly for debugging
Tune-17882-JohnJohnson_ChoiceCollectionVol8-V2.abc 174 ABC music file with the extracted tune(s)
Tune-17882-JohnJohnson_ChoiceCollectionVol8-V2.pdf 2217 Portable Data Format
Tune-17882-JohnJohnson_ChoiceCollectionVol8-V2.ps 6 PostScript
Tune-17882-JohnJohnson_ChoiceCollectionVol8-V2.txt 174 Plain-text file with the extracted tune(s)
Tune-17882-get.log 5623 Log file, useful mostly for debugging
Tune-17888-get.log 4880 Log file, useful mostly for debugging
Tune-17889-Jean_Henry_dAnglebert_PdC1.abc 164 ABC music file with the extracted tune(s)
Tune-17889-Jean_Henry_dAnglebert_PdC1.txt 164 Plain-text file with the extracted tune(s)
Tune-17889-get.log 3480 Log file, useful mostly for debugging
These files should be available for 24 hours.