pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1095-Salt_Fish_and_Dumplins.ps) >>/Users/jc/w/tmp/Tune-1095-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnWalsh/Salt_Fish_and_Dumplins.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-1095-Salt_Fish_and_Dumplins.abc 488 ABC music file with the extracted tune(s)
Tune-1095-Salt_Fish_and_Dumplins.ps 34619 PostScript
Tune-1095-Salt_Fish_and_Dumplins.txt 488 Plain-text file with the extracted tune(s)
Tune-1095-get.log 9728 Log file, useful mostly for debugging
Tune-10951-get.log 4225 Log file, useful mostly for debugging
Tune-10952-cont.abc 141 ABC music file with the extracted tune(s)
Tune-10952-cont.ps 6 PostScript
Tune-10952-cont.txt 141 Plain-text file with the extracted tune(s)
Tune-10952-get.log 7267 Log file, useful mostly for debugging
Tune-10953-get.log 3390 Log file, useful mostly for debugging
Tune-10954-get.log 4492 Log file, useful mostly for debugging
Tune-10955-get.log 4394 Log file, useful mostly for debugging
Tune-10956-get.log 3476 Log file, useful mostly for debugging
Tune-10958-get.log 6914 Log file, useful mostly for debugging
Tune-10959-20181_.abc 33 ABC music file with the extracted tune(s)
Tune-10959-20181_.pdf 2217 Portable Data Format
Tune-10959-20181_.ps 6 PostScript
Tune-10959-20181_.txt 33 Plain-text file with the extracted tune(s)
Tune-10959-get.log 4763 Log file, useful mostly for debugging
These files should be available for 24 hours.