pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5282-Nonesuch_1651_PLFD1_071_CP.ps) >>/Users/jc/w/tmp/Tune-5282-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Nonesuch_1651_PLFD1_071_CP.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_5282.log 634176 Log file, useful mostly for debugging
Form_52821.log 1179 Log file, useful mostly for debugging
Tune-5282-Nonesuch_1651_PLFD1_071_CP.abc 347 ABC music file with the extracted tune(s)
Tune-5282-Nonesuch_1651_PLFD1_071_CP.ps 33292 PostScript
Tune-5282-Nonesuch_1651_PLFD1_071_CP.txt 347 Plain-text file with the extracted tune(s)
Tune-5282-get.log 4840 Log file, useful mostly for debugging
Tune-52820-get.log 3082 Log file, useful mostly for debugging
Tune-52825-20911_Light_As_Thistledown.abc 630 ABC music file with the extracted tune(s)
Tune-52825-20911_Light_As_Thistledown.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-52825-20911_Light_As_Thistledown.ps 34204 PostScript
Tune-52825-20911_Light_As_Thistledown.txt 630 Plain-text file with the extracted tune(s)
Tune-52825-get.log 5556 Log file, useful mostly for debugging
These files should be available for 24 hours.