Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1802/cresc.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6662-cresc.ps) >>/Users/jc/w/tmp/Tune-6662-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1802/cresc.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-6662-cresc.abc 142 ABC music file with the extracted tune(s)
Tune-6662-cresc.ps 6 PostScript
Tune-6662-cresc.txt 142 Plain-text file with the extracted tune(s)
Tune-6662-get.log 3959 Log file, useful mostly for debugging
Tune-66620-CDSS_CDoT.abc 146 ABC music file with the extracted tune(s)
Tune-66620-CDSS_CDoT.ps 6 PostScript
Tune-66620-CDSS_CDoT.txt 146 Plain-text file with the extracted tune(s)
Tune-66620-get.log 7889 Log file, useful mostly for debugging
Tune-66624-JacksHealth_PLFD1679_228.abc 385 ABC music file with the extracted tune(s)
Tune-66624-JacksHealth_PLFD1679_228.pdf 18019 Portable Data Format
Tune-66624-JacksHealth_PLFD1679_228.ps 33769 PostScript
Tune-66624-JacksHealth_PLFD1679_228.txt 385 Plain-text file with the extracted tune(s)
Tune-66624-get.log 5737 Log file, useful mostly for debugging
These files should be available for 24 hours.