pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-48538-Health_1.ps) >>/Users/jc/w/tmp/Tune-48538-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Health_1.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-48538-30773_Quickstep_No_1.abc 788 ABC music file with the extracted tune(s)
Tune-48538-30773_Quickstep_No_1.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-48538-30773_Quickstep_No_1.ps 35824 PostScript
Tune-48538-30773_Quickstep_No_1.txt 788 Plain-text file with the extracted tune(s)
Tune-48538-Health_1.abc 725 ABC music file with the extracted tune(s)
Tune-48538-Health_1.ps 32256 PostScript
Tune-48538-Health_1.txt 725 Plain-text file with the extracted tune(s)
Tune-48538-get.log 11236 Log file, useful mostly for debugging
These files should be available for 24 hours.