pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4661-HUTB2-1846-V2.ps) >>/Users/jc/w/tmp/Tune-4661-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Hamilton/HUTB2-1846-V2.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
Tune-4661-HUTB2-1846-V2.abc 744 ABC music file with the extracted tune(s)
Tune-4661-HUTB2-1846-V2.ps 35009 PostScript
Tune-4661-HUTB2-1846-V2.txt 744 Plain-text file with the extracted tune(s)
Tune-4661-get.log 126996 Log file, useful mostly for debugging
Tune-46611-IrishAndScottishWaltzMedleySet.abc 685 ABC music file with the extracted tune(s)
Tune-46611-IrishAndScottishWaltzMedleySet.ps 36090 PostScript
Tune-46611-IrishAndScottishWaltzMedleySet.txt 685 Plain-text file with the extracted tune(s)
Tune-46611-get.log 7988 Log file, useful mostly for debugging
These files should be available for 24 hours.