pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1707-DickieRogersPedestalClog.ps) >>/Users/jc/w/tmp/Tune-1707-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/DickieRogersPedestalClog.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-1707-24CountryDances_1810_Button_Whitaker.abc 173 ABC music file with the extracted tune(s)
Tune-1707-24CountryDances_1810_Button_Whitaker.pdf 2217 Portable Data Format
Tune-1707-24CountryDances_1810_Button_Whitaker.ps 6 PostScript
Tune-1707-24CountryDances_1810_Button_Whitaker.txt 173 Plain-text file with the extracted tune(s)
Tune-1707-DickieRogersPedestalClog.abc 1020 ABC music file with the extracted tune(s)
Tune-1707-DickieRogersPedestalClog.ps 46919 PostScript
Tune-1707-DickieRogersPedestalClog.txt 1020 Plain-text file with the extracted tune(s)
Tune-1707-get.log 10481 Log file, useful mostly for debugging
Tune-17073-get.log 3136 Log file, useful mostly for debugging
Tune-17076-get.log 2846 Log file, useful mostly for debugging
Tune-17079-cont.abc 141 ABC music file with the extracted tune(s)
Tune-17079-cont.pdf 2217 Portable Data Format
Tune-17079-cont.ps 6 PostScript
Tune-17079-cont.txt 141 Plain-text file with the extracted tune(s)
Tune-17079-get.log 4706 Log file, useful mostly for debugging
These files should be available for 24 hours.